Rohde & Schwarz R&S SMW-K78 User Manual
  1. Manuals
  2. Brands
  3. Rohde & Schwarz Manuals
  4. Portable Generator
  5. R&S SMW-K78
  6. User manual

Rohde & Schwarz R&S SMW-K78 User Manual

Radar echo generation
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
®
R&S
SMW-K78
Radar Echo Generation
User Manual
(;ÛÌÂ2)
1177625202
Version 17

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the R&S SMW-K78 and is the answer not in the manual?

Questions and answers

Related Manuals for Rohde & Schwarz R&S SMW-K78

Summary of Contents for Rohde & Schwarz R&S SMW-K78

  • Page 1 ® R&S SMW-K78 Radar Echo Generation User Manual (;ÛÌÂ2) 1177625202 Version 17...
  • Page 2 This document describes the following software options: ● R&S ® SMW-78 Radar Echo Generation (1414.1833.02) ® This manual describes firmware version FW 5.30.175.xx and later of the R&S SMW200A. © 2024 Rohde & Schwarz Muehldorfstr. 15, 81671 Muenchen, Germany Phone: +49 89 41 29 - 0 Email: info@rohde-schwarz.com Internet:...

  • Page 3: Table Of Contents

    ® Contents R&S SMW-K78 Contents 1 Welcome to the Radar Echo Generation option........5 Accessing the Radar Echo Generation dialog............5 What's new........................7 Documentation overview....................7 1.3.1 Getting started manual....................7 1.3.2 User manuals and help....................7 1.3.3 Tutorials...........................8 1.3.4 Service manual....................... 8 1.3.5 Instrument security procedures..................8 1.3.6...
  • Page 4 ® Contents R&S SMW-K78 Radar setup settings....................25 Overview test setup....................31 Restart settings......................32 Simulation setup settings..................34 Object configuration settings..................38 Radar cross section RCS setup settings..............46 Object preview settings....................49 4 How to generate radar echo signals..........51 Connecting the RUT and the REG (conducted test)..........52 Connecting the R&S FSW to the R&S SMW200A.............52 Using the reference frequency of the R&S FSW............

  • Page 5: Welcome To The Radar Echo Generation Option

    ® Welcome to the Radar Echo Generation option R&S SMW-K78 Accessing the Radar Echo Generation dialog 1 Welcome to the Radar Echo Generation option The R&S SMW-K78 is a firmware application that adds functionality to generate a sin- gle or multiple radar echo signals for radar tests. The R&S SMW-K78 features include: ●...
  • Page 6 ® Welcome to the Radar Echo Generation option R&S SMW-K78 Accessing the Radar Echo Generation dialog 2. Select "Fading/Baseband Config > Mode > Radar Echo Generation (REG)". 3. Select "Apply". 4. Confirm with "OK" 5. In the block diagram, select "REG > Radar Echo Generation". A dialog box opens that displays the provided general settings.

  • Page 7: What's New

    ® Welcome to the Radar Echo Generation option R&S SMW-K78 Documentation overview For more information, see Chapter 4, "How to generate radar echo signals", on page 51. 1.2 What's new This manual describes firmware version FW 5.30.175.xx and later of the ®...

  • Page 8: Tutorials

    ® Welcome to the Radar Echo Generation option R&S SMW-K78 Documentation overview 1.3.3 Tutorials The R&S SMW200A provides interactive examples and demonstrations on operating the instrument in the form of tutorials. A set of tutorials is available directly on the instrument.

  • Page 9: Application Notes, Application Cards, White Papers, Etc

    ® Welcome to the Radar Echo Generation option R&S SMW-K78 Scope The software uses several valuable open source software packages. An open source acknowledgment document provides verbatim license texts of the used open source software. www.rohde-schwarz.com/firmware/smw200a 1.3.10 Application notes, application cards, white papers, etc. These documents deal with special applications or background information on particu- lar topics.

  • Page 10: Notes On Screenshots

    ® Welcome to the Radar Echo Generation option R&S SMW-K78 Notes on screenshots 1.5 Notes on screenshots When describing the functions of the product, we use sample screenshots. These screenshots are meant to illustrate as many as possible of the provided functions and possible interdependencies between parameters.

  • Page 11: About The Radar Echo Generation Option

    ® About the Radar Echo Generation option R&S SMW-K78 Required options and equipment 2 About the Radar Echo Generation option Testing of a radar system with real targets can be a complex task, including expensive and not reproducible field tests, or involving specially designed hardware. A novel approach is to use standard test and measurement equipment instead, for example the combination of the R&S SMW200A and the R&S FSW signal analyzer.

  • Page 12: Echo Generation With R&S Smw-K78

    ® About the Radar Echo Generation option R&S SMW-K78 Echo generation with R&S SMW-K78 ● Optional, an external attenuator to protect the input stage of the R&S FSW 2.2 Echo generation with R&S SMW-K78 If equipped with the Radar Echo Generation (REG) option, the R&S SMW200A can work as an echo generator together with the R&S FSW signal analyzer.

  • Page 13: Analyzer And Receiver Overload Protection

    ® About the Radar Echo Generation option R&S SMW-K78 Analyzer and receiver overload protection Figure 2-2: Radar echo generation with real radar signal (over-the-air tests) = Over-the-air OTA Range Offset = Distance between the RUT and the REG antennae Alternatively to the two previous examples, the radar signals can be created internally in the R&S SMW200A.

  • Page 14: Important Parameters And Interdependencies

    ® About the Radar Echo Generation option R&S SMW-K78 Important parameters and interdependencies ● Observe the theoretical dynamic power range of the scenario before activating the REG. "Ext. Attenuator (Analyzer)" on page 30. ● To protect the radar inputs from overloading, limit the output power at the RF out- puts of the R&S SMW200A.

  • Page 15: Simulated Objects Types

    ® About the Radar Echo Generation option R&S SMW-K78 Important parameters and interdependencies 2.4.1 Simulated objects types The R&S SMW200A equipped with one Radar Echo Generation option can generate the echo signal of up to 12 independent static or moving objects. In the context of this firmware, a static object is an object with a zero object velocity.

  • Page 16: Calculating The Reg Input And Output Levels

    ® About the Radar Echo Generation option R&S SMW-K78 Important parameters and interdependencies Radar equation The power of the signal Rx returned to the radar antenna P is calculated as follows: [dBm] = + S + σ + 20*log ) - 20*log (f) - 40*log ) - 30*log (4π)
  • Page 17 ® About the Radar Echo Generation option R&S SMW-K78 Important parameters and interdependencies Figure 2-5: P_Rx calculation (simplified representation, "Ext. Attenuator A = 0 dB", "Test setup = Conducted") EIRP, P = Radar parameters Space loss = Signal attenuation simulated by the selected "Range" σ...
  • Page 18 ® About the Radar Echo Generation option R&S SMW-K78 Important parameters and interdependencies "Ext. Attenuator (Analyzer)" on page 30. Figure 2-6: P_Rx calculation (simplified representation, "Ext. Attenuator A = A dB", "Test setup = Conducted") A = External attenuation 1 = External attenuation merely protects the input of the analyzer; in does not change the calculated value ●...

  • Page 19: Setting The Reg Input And Output Levels

    ® About the Radar Echo Generation option R&S SMW-K78 Important parameters and interdependencies Figure 2-7: P_Rx calculation (simplified representation, "Ext. Attenuator A = A dB", "Test setup = OTA") = External attenuation 1a, 1b = External attenuation A, R , and G do not change the calculated P value Rx_REG...

  • Page 20: Doppler Frequency Shift Calculation

    ® About the Radar Echo Generation option R&S SMW-K78 Important parameters and interdependencies RefLevel adjustment Analyzer To ensure correct leveling at the beginning of the simulation, the R&S SMW200A per- forms the following: ● Calculates the required reference level (RefLevel ) depending on the Test Analyzer...

  • Page 21: Delay Calculation

    ® About the Radar Echo Generation option R&S SMW-K78 Important parameters and interdependencies ● |v| is the velocity of the object in the direction of travel and is given by the absolute value of the radial velocity. "Object Velocity" on page 42. ●...
  • Page 22 ® About the Radar Echo Generation option R&S SMW-K78 Important parameters and interdependencies Figure 2-8: Effect of the blind zone (BZ) = Blind zone of the 1 pulse = Blind zone duration 1a, 1b Tx pulse and first Rx pulse (echo), retransmitted to the RUT 2a and 2b, 3a and 3b = Tx and Rx pulse pairs τ...

  • Page 23: System Latency Calibration

    ® About the Radar Echo Generation option R&S SMW-K78 General recommendations = Tx pulse, as transmitted by the RUT; this pulse number is indicated with the parameter First Echo to Pulse# = Rx pulse (echo), retransmitted to the RUT 3a and 3b = Tx and Rx pulse pairs 2.4.5 System latency calibration The REG system latency can be estimated automatically or set manually.
  • Page 24 ® About the Radar Echo Generation option R&S SMW-K78 General recommendations 2. Connect all required cables between the REG and the RUT: reference frequency, data, control, trigger, RF signals 3. Follow the rules for overload protection 4. Configure the "System Configuration" settings, in particular the signal routing form the "BB In"...

  • Page 25: Radar Echo Generation Configuration And Settings

    ® Radar echo generation configuration and settings R&S SMW-K78 Radar setup settings 3 Radar echo generation configuration and settings This section describes the related settings. The remote commands required to define these settings are described in Chapter 5, "Remote-control commands", on page 63.
  • Page 26 ® Radar echo generation configuration and settings R&S SMW-K78 Radar setup settings Figure 3-1: Radar Setup: Understanding the displayed information = Test setup overview, see Figure 3-2 = Radar under test (RUT) settings = External attenuator and analyzer-related settings = General decision on the radar Rx power settings calculation, see Chapter 2.4.2, "Radar received power P calculation",...

  • Page 27: State

    ® Radar echo generation configuration and settings R&S SMW-K78 Radar setup settings └ Scan Period....................30 Ext. Attenuator (Analyzer)..................... 30 Set Ref. Level on Analyzer....................30 State Enables/disables the Radar Echo Generation. Remote command: on page 66 [:SOURce<hw>]:REGenerator[:STATe] Overview Test Setup Opens a dialog that illustrates the required (and connected) equipment and cables for the configuration selected with the parameter "Test Setup", see Figure...

  • Page 28: Over-The-Air Tests Settings

    ® Radar echo generation configuration and settings R&S SMW-K78 Radar setup settings Tip: Use the "Overview Test Setup" function to retrieve more information on the current setup. See for example Figure 3-2. Tip: Use the parameter "System Loss" to compensate for system or cable loss. "Conducted Test"...

  • Page 29: Radar Under Test (Rut) Settings

    ® Radar echo generation configuration and settings R&S SMW-K78 Radar setup settings "Manual" The radar equation is not used; you set the P value of each object Rx, j instead. Radar Rx Power. This parameter is useful if your test situation requires a specific Rx power.
  • Page 30 ® Radar echo generation configuration and settings R&S SMW-K78 Radar setup settings PRI and PRF are interdependent, setting on of the value changes the other. For RCS swerling models II and IV, a new random RCS value is generated according to the duration of the "PRI"...

  • Page 31: Overview Test Setup

    ® Radar echo generation configuration and settings R&S SMW-K78 Overview test setup 3.2 Overview test setup Access: 1. Select "REG > Radar Echo Generation > Overview Test Setup" Figure 3-2: Overview Test Setup: Understanding the displayed information 1a, 1b = REG settings = External attenuator = Distance between the antennas = Test setup type, incl.

  • Page 32: Restart Settings

    ® Radar echo generation configuration and settings R&S SMW-K78 Restart settings ● Chapter 4.2, "Connecting the R&S FSW to the R&S SMW200A", on page 52 Show DIG I/Q IN/OUT, reference frequency, trigger, RF connector Opens the "Show Connector" dialog and displays the physical location of the connec- tors on the front/rear panel of the R&S SMW200A and R&S FSW.
  • Page 33 ® Radar echo generation configuration and settings R&S SMW-K78 Restart settings "Armed Auto" The signal is generated only when a trigger event occurs. Simulation starts upon the trigger event. Then the signal is generated continuously; all configured objects are simulated. Internal or external trigger event are used, as set with the parameter Source.

  • Page 34: Simulation Setup Settings

    ® Radar echo generation configuration and settings R&S SMW-K78 Simulation setup settings ● "Stop Time Attenuation = 0 dB" forwards the signal to the output without additional attenuation. Remote command: on page 71 [:SOURce<hw>]:REGenerator:RESTart:STATtenuation Global Connectors Quick access to the related global connector settings. For more information, refer to the description R&S SMW200A user manual, section "Local and Global Connectors".
  • Page 35 ® Radar echo generation configuration and settings R&S SMW-K78 Simulation setup settings Correction Value......................36 System Latency (Blind Zone/ BZ)................. 36 Underrange......................36 Use Radar Range Ambiguity to reduce Min. Range............. 36 Level for Simulation.......................37 Adjust Dedicated Level....................37 Dedicated Frequency....................37 Dedicated Connector....................

  • Page 36: Correction Value

    ® Radar echo generation configuration and settings R&S SMW-K78 Simulation setup settings Remote command: [:SOURce<hw>]:REGenerator:SIMulation:CALibration[:STATe]? on page 77 Correction Value For "System Latency Calibration" > "Automatic", adds a correction to the automatically estimated system latency value. Remote command: [:SOURce<hw>]:REGenerator:SIMulation:CALibration:CORRection on page 77 System Latency (Blind Zone/ BZ) ("System Latency Calibration >...

  • Page 37: Level For Simulation

    ® Radar echo generation configuration and settings R&S SMW-K78 Simulation setup settings Level for Simulation Show the calculated level value for the signal at the RF output (Level R&S SMW The level is calculated for the current scenario settings, incl. test setup, objects set- tings, enabled level offset ("RF >...

  • Page 38: Object Configuration Settings

    ® Radar echo generation configuration and settings R&S SMW-K78 Object configuration settings Dedicated Connector Displays the connector used to determine the Dedicated Frequency. Remote command: on page 78 [:SOURce<hw>]:REGenerator:SIMulation:CONNector Set Frequency on Analyzer The parameter is enabled only if FSW is connected to the R&S SMW200A. Sets the frequency indicated with the parameter Dedicated Frequency in the connec-...

  • Page 39: Settings: Object # Of 12

    ® Radar echo generation configuration and settings R&S SMW-K78 Object configuration settings = Moving object 2a, 2b = Movement mode selection and indication of the trajectory 3a, 3b and 7a, = Start and end range and the calculated radar Rx power. 4, 6 = Object velocity and the duration of a single movement form the start to the end range = Access to the "RCS Setup"...

  • Page 40: Copy

    ® Radar echo generation configuration and settings R&S SMW-K78 Object configuration settings Copy Triggers the copy function. Remote command: on page 82 [:SOURce<hw>]:REGenerator:OBJect:COPY:EXECute Load/Save Object Accesses the "File Select" dialog for storing and loading the object settings from a file. You can configure several objects and store their configuration in files, for example to build an object library.

  • Page 41: Radar Rx Power (Start)

    ® Radar echo generation configuration and settings R&S SMW-K78 Object configuration settings Remote command: on page 83 [:SOURce<hw>]:REGenerator:OBJect<ch>:SIMMode Radar Rx Power (Start) Indicates the radar Rx power P at the beginning of the simulation. The value is calcu- lated according to the Radar equation for the Start Range...

  • Page 42: End Range

    ® Radar echo generation configuration and settings R&S SMW-K78 Object configuration settings End Range Sets the farthest distance to the radar that a moving object reaches. Moving objects slide with the selected Object Velocity from the Start Range towards Range. Further movement depends on the selected Simulation Mode.

  • Page 43: First Echo To Pulse

    ® Radar echo generation configuration and settings R&S SMW-K78 Object configuration settings Remote command: on page 87 [:SOURce<hw>]:REGenerator:OBJect<ch>:HOLD:OFF First Echo to Pulse# Indicates the number of the first pulse for that an echo signal is generated. The value is calculated as a function of the BZ, the delay τ and the PRF, see Fig- 2-9.

  • Page 44: Rcs

    ® Radar echo generation configuration and settings R&S SMW-K78 Object configuration settings "End Range" The calculation is analog to the calculation in the "Radar Rx Power Dedicated to > Start Range" case. Example: ● "Radar Setup > Radar Rx Power Settings = Manual" ●...
  • Page 45 ® Radar echo generation configuration and settings R&S SMW-K78 Object configuration settings Defines a phase offset to be applied at the echo of an object. A value of 0 means no phase modification. ● Amplitude Value in dB. Allowed are negative values and 0. Defines an amplitude offset to be applied at the echo of an object.

  • Page 46: Radar Cross Section Rcs Setup Settings

    ® Radar echo generation configuration and settings R&S SMW-K78 Radar cross section RCS setup settings Active Enables the selected user list. Thus, the level and phase values defined in the list are added to the level and phase values, resulting form the other settings in the dialog. Remote command: on page 89 [:SOURce<hw>]:REGenerator:OBJect<ch>:ULISt:STATe...
  • Page 47 ® Radar echo generation configuration and settings R&S SMW-K78 Radar cross section RCS setup settings RCS Model Selects the model used to describe the radar cross section (RCS) of the selected object. "Swerling 0" The standard model is used to describe the statistical properties of the RCS as a function of the Mean RCS value.
  • Page 48 ® Radar echo generation configuration and settings R&S SMW-K78 Radar cross section RCS setup settings The "Peak RCS" and "Test Coverage" values are interdepending. Setting one of them changes the other value automatically. Remote command: on page 86 [:SOURce<hw>]:REGenerator:OBJect<ch>:RCS:PEAK Test Coverage For swerling I and II, sets the test coverage.

  • Page 49: Object Preview Settings

    ® Radar echo generation configuration and settings R&S SMW-K78 Object preview settings Remote command: on page 87 [:SOURce<hw>]:REGenerator:OBJect<ch>:RCS:UPINterval? 3.7 Object preview settings Access: 1. In the block diagram, select "REG > Radar Echo Generation > Object Preview". 2. Select "Diagram Type > Range/Velocity View". Figure 3-4: Object Preview >...
  • Page 50 ® Radar echo generation configuration and settings R&S SMW-K78 Object preview settings Figure 3-5: Object Preview > Radar Rx Power View: Understanding the displayed information = Legend that indicates the object and the assigned colors = Theoretical dynamic power range of the scenario, where the max value is the P (static Rx, 3 object) and the min value is the P...

  • Page 51: How To Generate Radar Echo Signals

    ® How to generate radar echo signals R&S SMW-K78 4 How to generate radar echo signals This section shows you how to use the R&S SMW200A to generate radar echo sig- nals. If there are several possibilities to connect the instruments or to configure the set- tings, the most common one of them is shown.

  • Page 52: Connecting The Rut And The Reg (Conducted Test)

    ® How to generate radar echo signals R&S SMW-K78 Using the reference frequency of the R&S FSW 4.1 Connecting the RUT and the REG (conducted test) Required connectors are on the front panels, see Figure 4-1. Connect the following: 1. RUT Tx output to the external attenuator. 2.

  • Page 53: Configure The Connection To The R&S Fsw

    ® How to generate radar echo signals R&S SMW-K78 Configure the connection to the R&S FSW 2. In the status bar, tap on the "Int Ref". The "Ref. Frequency /LO Coupling" dialog opens. 3. Set "Reference Frequency > Source > External". The R&S SMW200A is synchronized to the reference frequency of the R&S FSW.
  • Page 54 ® How to generate radar echo signals R&S SMW-K78 Configure the connection to the R&S FSW 2. Select "Fading/Baseband Config > Mode > Radar Echo Generation (REG)". 3. Select "Apply". 4. Select "External RF and I/Q". If the R&S FSW is connected to the R&S SMW200A as shown on Figure 4-1, the R&S SMW200A automatically detects it.
  • Page 55 ® How to generate radar echo signals R&S SMW-K78 Configure the connection to the R&S FSW The "External RF and I/Q" indicates that the analyzer is connected to the "CODER1" connector of the R&S SMW200A. The remote connection is, however, not active.
  • Page 56 ® How to generate radar echo signals R&S SMW-K78 Configure the connection to the R&S FSW 7. Close the dialogs. The "I/Q Modulator" is activated automatically. The block diagram resembles the following. User Manual 1177.6252.02 ─ 17...

  • Page 57: Simulating Six Echoes

    ® How to generate radar echo signals R&S SMW-K78 Simulating six echoes 4.5 Simulating six echoes In the R&S SMW200A, perform the following: 1. On the status bar, select the "A Freq." field and enter the radar frequency. 2. In the block diagram, select "REG A > Radar Echo Generation". The Radar Echo Generation dialog box opens and displays the "Radar Setup"...
  • Page 58 ® How to generate radar echo signals R&S SMW-K78 Simulating six echoes 5. Select "Simulation Setup". The dialog confirms that he used frequency ("Dedicated Frequency = 5 GHz") is as set with the parameter "Freq". The analyzer frequency, however, deviates from this value. 6.

  • Page 59: Generating Up To 24 Echoes

    ® How to generate radar echo signals R&S SMW-K78 Generating up to 24 echoes 4.6 Generating up to 24 echoes This example extends the configurations described in Chapter 4.5, "Simulating six ech- oes", on page 57. It shows how to route the real radar signal to both R&S SMW200A paths, so that you can generate up to 24 echoes from the same input signal.
  • Page 60 ® How to generate radar echo signals R&S SMW-K78 Generating up to 24 echoes b) Route "Stream B to RF A" and disable it for "RF B". c) Close the dialog. The signal streams of both paths are output at the RF A connector. 3.

  • Page 61: Deactivating Subset Of Objects Configured In One Reg Blocks

    ® How to generate radar echo signals R&S SMW-K78 Estimating the system latency time roughly 5. In the R&S SMW200A, open "REG B > Radar Echo Generation" dialog, adjust the objects settings and set "Radar Setup > State > On". The RUT detects the up to 24 objects, as activated in "REG A"...
  • Page 62 ® How to generate radar echo signals R&S SMW-K78 Estimating the system latency time roughly 4. Measure the signal delay for example with an oscilloscope. 5. In the block diagram R&S SMW200A, select "REG A > Radar Echo Generation > Simulation Setup".

  • Page 63: Remote-Control Commands

    ® Remote-control commands R&S SMW-K78 Programming example 5 Remote-control commands The following commands are required to perform signal generation with the option R&S SMW-K78 in a remote environment. We assume that the R&S SMW200A has already been set up for remote operation in a network as described in the R&S SMW200A documentation.
  • Page 64 ® Remote-control commands R&S SMW-K78 Programming example SCONfiguration:APPLy SCONfiguration:EXTernal:REMote:SCAN SCONfiguration:EXTernal:CODer1:REMote:ISELect "FSW (102030)","A","FSW (102030)","A" SCONfiguration:EXTernal:CODer1:REMote:INITialization:PREDefined:FILE "REG_init_analyzer" SCONfiguration:EXTernal:CODer1:REMote:CONNect SOURce1:BBIN:STATe? // 1 SOURce1:REGenerator:PRESet SOURce1:REGenerator:UNIT:LENGth KM SOURce1:REGenerator:RADar:TSETup OTA SOURce1:REGenerator:RADar:POWer:TX 10 SOURce1:REGenerator:RADar:ANTenna:GAIN:TX 50 // SOURce1:REGenerator:RADar:ANTenna:GAIN:RX 50 SOURce1:POWer:LIMit:AMPLitude 5 SOURce1:REGenerator:RADar:POWer:LOSS 10 SOURce1:REGenerator:SIMulation:PRF 10000 SOURce1:REGenerator:SIMulation:PRI? // 0.0001 SOURce1:REGenerator:SIMulation:SPERiod 0.1 SOURce1:REGenerator:RADar:POWer:MODE REQuation SOURce1:REGenerator:RADar:ANALyzer:POWer:ATTenuator 10...
  • Page 65 ® Remote-control commands R&S SMW-K78 Programming example SOURce1:POWer:LEVel:IMMediate:AMPLitude? // 10.85 SOURce1:REGenerator:OBJect2:NAME "MovObj_2_20_100" SOURce1:REGenerator:OBJect2:TYPE MOV SOURce1:REGenerator:OBJect2:SIMMode ROUN SOURce1:REGenerator:OBJect2:HOLD:OFF 2 SOURce1:REGenerator:OBJect2:RCS:MODel SWE0 SOURce1:REGenerator:OBJect2:RCS:MEAN 3 SOURce1:REGenerator:OBJect2:RANGe:STARt 2000 SOURce1:REGenerator:OBJect2:RANGe:END 20000 SOURce1:REGenerator:OBJect2:OVELocity 27.778 // value in m/s; 27.778 m/s = 100 km/h SOURce1:REGenerator:OBJect2:PHASe:OFFSet 0 // value in deg // the following commands change the units in the dialogs // but not in the remote control commands SOURce1:REGenerator:UNIT:TIME S...

  • Page 66: General Commands

    ® Remote-control commands R&S SMW-K78 General commands SOURce1:REGenerator:OBJect3:ULISt:SELect "/var/user/list1" SOURce1:REGenerator:OBJect3:ULISt:STATe 1 SOURce1:REGenerator:STATe 1 OUTPut1:STATe 1 SOURce1:REGenerator:STORe "/var/user/reg" SOURce1:REGenerator:CATalog? // reg // starting the simulation at a defined moment of time SOURce1:REGenerator:STATe 1 OUTPut1:STATe 1 SOURce1:REGenerator:RESTart:SOURce INT SOURce1:REGenerator:RESTart:MODE AAUT SOURce1:REGenerator:RESTart:STATtenuation 60 // the signal at the output is suppressed during the time // in that the signal generation is stopped SOURce1:REGenerator:RESTart:EXECute...
  • Page 67 ® Remote-control commands R&S SMW-K78 General commands Manual operation: "State" on page 27 [:SOURce<hw>]:REGenerator:PRESet Calls the default settings. Example: Chapter 5.1, "Programming example", on page 63. Usage: Event Manual operation: "Set to Default" on page 27 [:SOURce<hw>]:REGenerator:CATalog? Queries the files with settings in the default directory. Listed are files with the file exten- sion *.reg.
  • Page 68 ® Remote-control commands R&S SMW-K78 General commands [:SOURce<hw>]:REGenerator:UNIT:ANGLe <Unit> Sets the default unit for the parameter as displayed in the dialog. Note: This command changes only the units displayed in the graphical user interface. While configuring the angle via remote control, the angle units must be specified. Parameters: <Unit>...

  • Page 69: Restart Commands

    ® Remote-control commands R&S SMW-K78 Restart commands 5.3 Restart commands ..............69 [:SOURce<hw>]:REGenerator:RESTart:MODE ..............69 [:SOURce<hw>]:REGenerator:RESTart:SOURce ..............70 [:SOURce<hw>]:REGenerator:RESTart:EXECute ............70 [:SOURce<hw>]:REGenerator:RESTart:ARM:EXECute ..............70 [:SOURce<hw>]:REGenerator:RESTart:RMODe? ..........70 [:SOURce<hw>]:REGenerator:RESTart:SYNChronize[:STATe] ............71 [:SOURce<hw>]:REGenerator:RESTart:STATtenuation [:SOURce<hw>]:REGenerator:RESTart:MODE <Mode> Selects the event which leads to a restart of the REG simulation. Parameters: <Mode>...
  • Page 70 ® Remote-control commands R&S SMW-K78 Restart commands [:SOURce<hw>]:REGenerator:RESTart:EXECute If [:SOURce<hw>]:REGenerator:RESTart:MODE AAUT, restarts the REG simula- tion. Example: Chapter 5.1, "Programming example", on page 63. Usage: Event Manual operation: "Execute Trigger" on page 33 [:SOURce<hw>]:REGenerator:RESTart:ARM:EXECute Stops signal generation; a subsequent trigger event restarts signal generation. Example: SOURce1:REGenerator:TRIGger:SOURce INT SOURce1:REGenerator:RESTart:MODE AAUT...

  • Page 71: Radar Setup Commands

    ® Remote-control commands R&S SMW-K78 Radar setup commands Example: SOURce1:REGenerator:STATe 1 SOURce2:REGenerator:STATe 1 SOURce:REGenerator:RESTart:SYNChronize:STATe 1 SOURce1:REGenerator:STATe 0 SOURce1:REGenerator:STATe 1 // the REG blocks restart simultaneously Manual operation: "Synchronization" on page 34 [:SOURce<hw>]:REGenerator:RESTart:STATtenuation <StopTimeAtt> If [:SOURce<hw>]:REGenerator:RESTart:MODE AAUT, sets the attenuation applied on the output signal during the time the signal generation is stopped. Parameters: <StopTimeAtt>...
  • Page 72 ® Remote-control commands R&S SMW-K78 Radar setup commands Parameters: <TestSetup> CONDucted | OTA *RST: CONDucted Example: Chapter 5.1, "Programming example", on page 63. Manual operation: "Test Setup" on page 27 [:SOURce<hw>]:REGenerator:RADar:POWer:TX <Power> Sets the radar transmit power P Parameters: <Power> float Range: -50 to 100...
  • Page 73 ® Remote-control commands R&S SMW-K78 Radar setup commands Parameters: <SimPri> float Range: 3.74742e-5 to 1 Increment: 1E-5 *RST: 1E-4 Example: Chapter 5.1, "Programming example", on page 63. Manual operation: "PRI" on page 29 [:SOURce<hw>]:REGenerator:SIMulation:SPERiod <SimScanPeriod> Set the time which the radar needs for one scan. Parameters: <SimScanPeriod>...
  • Page 74 ® Remote-control commands R&S SMW-K78 Radar setup commands Manual operation: "REG Antenna Tx Gain" on page 28 [:SOURce<hw>]:REGenerator:RADar:OTA:OFFSet <OtaOffset> Sets the OTA (over-the-air) distance. Parameters: <OtaOffset> float Range: 0.01 to 50E3 Increment: 0.01 *RST: Example: Chapter 5.1, "Programming example", on page 63. Manual operation: "OTA Range Offset"...

  • Page 75: Simulation Setup Commands

    ® Remote-control commands R&S SMW-K78 Simulation setup commands [:SOURce<hw>]:REGenerator:RADar:ANALyzer:POWer:APPLy Sets the referenece level of the analyzer. The command can be used only if a R&S FSW is connected to the R&S SMW200A. Example: Chapter 5.1, "Programming example", on page 63. Usage: Event Manual operation:...
  • Page 76 ® Remote-control commands R&S SMW-K78 Simulation setup commands ............79 [:SOURce<hw>]:REGenerator:SIMulation:LEVel:APPLy ........80 [:SOURce<hw>]:REGenerator:SIMulation:LEVel:UPDated[:STATus]? ........80 [:SOURce<hw>]:REGenerator:SIMulation:LEVel:VALid[:STATus]? [:SOURce<hw>]:REGenerator:SIMulation:CALibration:MODE <CalMode> Sets how the system latency is estimated. Parameters: <CalMode> MANual | AUTomatic AUTomatic mode can be used only if a R&S FSW is connected to the R&S SMW200A.
  • Page 77 ® Remote-control commands R&S SMW-K78 Simulation setup commands Example: SOURce1:REGenerator:SIMulation:CALibration:MODE MAN SOURce1:REGenerator:SIMulation:CALibration:URANge 0 SOURce1:REGenerator:OBJect12:TYPE STAT SOURce1:REGenerator:OBJect12:RANGe:STARt 1300 SOURce1:REGenerator:OBJect12:RANGe:STARt? // 2400 // Range min [m] = 2400 = BZ + 300 SOURce1:REGenerator:SIMulation:CALibration:URANge 1 SOURce1:REGenerator:SIMulation:LATency:BZ 1000 SOURce1:REGenerator:OBJect12:RANGe:STARt 1300 SOURce1:REGenerator:OBJect12:RANGe:STARt? // 1300 // Range min [m] = 1300 = 1000 + 300 SOURce1:REGenerator:SIMulation:CALibration:MODE AUT SOURce1:REGenerator:SIMulation:LATency:BZ? // 1900...
  • Page 78 ® Remote-control commands R&S SMW-K78 Simulation setup commands Parameters: <CorrValue> float Range: -100 to 100 Increment: 0.01 *RST: Example: SOURce1:REGenerator:SIMulation:CALibration:MODE AUTomatic SOURce1:REGenerator:SIMulation:CALibration:LAEX SOURce1:REGenerator:SIMulation:CALibration:STATe? // SUCC SOURce1:REGenerator:SIMulation:CALibration:CORRection 1 Manual operation: "Correction Value" on page 36 [:SOURce<hw>]:REGenerator:SIMulation:MINRange[:STATe] <State> Enables the simulation of delays that are shorter than the system latency (τ < t Parameters: <State>...
  • Page 79 ® Remote-control commands R&S SMW-K78 Simulation setup commands Example: Chapter 5.1, "Programming example", on page 63. Manual operation: "Dedicated Frequency" on page 37 [:SOURce<hw>]:REGenerator:SIMulation:ANALyzer:FREQuency:APPLy Sets the analyzer frequency. The command can be used only if a R&S FSW is connected to the R&S SMW200A. Example: Chapter 5.1, "Programming example",...

  • Page 80: Object Configuration Commands

    ® Remote-control commands R&S SMW-K78 Object configuration commands [:SOURce<hw>]:REGenerator:SIMulation:LEVel:UPDated[:STATus]? <Status> Queries whether the current output level at the dedicated connector is equal to the cal- culated level. To query the calculated level, use the command [:SOURce<hw>]:REGenerator: SIMulation:LEVel?. Parameters: <Status> 1 | ON | 0 | OFF Example: Chapter 5.1, "Programming example",...
  • Page 81 ® Remote-control commands R&S SMW-K78 Object configuration commands ............86 [:SOURce<hw>]:REGenerator:OBJect<ch>:RCS:PEAK ..........86 [:SOURce<hw>]:REGenerator:OBJect<ch>:RCS:TCOVerage ............86 [:SOURce<hw>]:REGenerator:OBJect<ch>:RCS:SPER ..........87 [:SOURce<hw>]:REGenerator:OBJect<ch>:RCS:UPINterval? ............87 [:SOURce<hw>]:REGenerator:OBJect<ch>:HOLD:OFF ..........87 [:SOURce<hw>]:REGenerator:OBJect<ch>:TIME:TOENd? ..........88 [:SOURce<hw>]:REGenerator:OBJect<ch>:PHASe[:OFFSet] ............88 [:SOURce<hw>]:REGenerator:OBJect<ch>:FEPNumber? ............88 [:SOURce<hw>]:REGenerator:OBJect:ULISt:CATalog? ............88 [:SOURce<hw>]:REGenerator:OBJect<ch>:ULISt:SELect ............. 89 [:SOURce<hw>]:REGenerator:OBJect<ch>:ULISt:STATe [:SOURce<hw>]:REGenerator:OBJect:CATalog? Queries files with object setting in the default directory. Listed are files with the file extension *.reg_obj.
  • Page 82 ® Remote-control commands R&S SMW-K78 Object configuration commands Setting parameters: <Filename> string Example: [:SOURce<hw>]:REGenerator:OBJect:CATalog? on page 81 Usage: Setting only Manual operation: "Load/Save Object" on page 40 [:SOURce<hw>]:REGenerator:OBJect:COPY:SOURce <Source> Selects the object whose settings are copied. Parameters: <Source> 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 11 | 12 | 10 *RST: Example: [:SOURce<hw>]:REGenerator:OBJect:COPY:...
  • Page 83 ® Remote-control commands R&S SMW-K78 Object configuration commands Example: Chapter 5.1, "Programming example", on page 63. Manual operation: "Object Name" on page 40 [:SOURce<hw>]:REGenerator:OBJect<ch>:TYPE <Type> Sets the object type or disables it. Parameters: <Type> OFF | STATic | MOVing | SMOVing *RST: STAT for 1st object, else OFF Example:...
  • Page 84 ® Remote-control commands R&S SMW-K78 Object configuration commands [:SOURce<hw>]:REGenerator:OBJect<ch>:POWer:RX:DEDication <Dedication> MANual mode and for [:SOURce<hw>]:REGenerator:RADar:POWer:MODE moving objects, defines how to interpret the value P set with the command SOURce<hw>]:REGenerator:OBJect<ch>:POWer:RX. Parameters: <Dedication> STARt | END | ALL STARt Rx, jStartRange Rx, jEndRange Rx, jStartRange Rx, jEndRange *RST:...
  • Page 85 ® Remote-control commands R&S SMW-K78 Object configuration commands Manual operation: "Radar Rx Power (End)" on page 41 [:SOURce<hw>]:REGenerator:OBJect<ch>:RANGe:STARt <RangeStart> [:SOURce<hw>]:REGenerator:OBJect<ch>:RANGe:END <RangeEnd> Sets the distance between the object and the radar. Parameters: <RangeEnd> float Range: 2100 to 10000000 Increment: 0.1 *RST: 5000 (RANGe:STARt) / 4000 (RANGe:END) Default unit: km Example:...
  • Page 86 ® Remote-control commands R&S SMW-K78 Object configuration commands Example: Chapter 5.1, "Programming example", on page 63. Manual operation: "RCS Model" on page 47 [:SOURce<hw>]:REGenerator:OBJect<ch>:RCS:MEAN <Mean> Sets the mean RCS value required for the RCS calculation. Parameters: <Mean> float Range: -60 to 100 Increment: 0.1 *RST: Example:...
  • Page 87 ® Remote-control commands R&S SMW-K78 Object configuration commands Parameters: <RcsSimPeriod> float Range: 3.74742E-5 to 3600 Increment: 1E-5 *RST: Example: Example"Configuring RCS swerling model" on page 66. Manual operation: "Simulation Period" on page 48 [:SOURce<hw>]:REGenerator:OBJect<ch>:RCS:UPINterval? Queries how often a new swerling random value is created. Return values: <RcsUpdateInterv>...
  • Page 88 ® Remote-control commands R&S SMW-K78 Object configuration commands Example: Chapter 5.1, "Programming example", on page 63. Usage: Query only Manual operation: "Time to Reach End Range" on page 41 [:SOURce<hw>]:REGenerator:OBJect<ch>:PHASe[:OFFSet] <Offset> Sets a phase offset between the transmitted pulse and the echo signal. Parameters: <Offset>...

  • Page 89: Preview Diagram Commands

    ® Remote-control commands R&S SMW-K78 Preview diagram commands ● Query the existing list with [:SOURce<hw>]:REGenerator:OBJect:ULISt: CATalog? ● Apply the list with [:SOURce<hw>]:REGenerator:OBJect<ch>:ULISt:STATe Suffix: <ch> 1, 2, 3, 7, 8, 9 Object number Parameters: <UserListSelect> "<filename>" Filename or complete file path; file extension can be omitted. Example: Chapter 5.1, "Programming example",...

  • Page 90: Glossary: Terms And Abbreviations

    ® Glossary: Terms and abbreviations R&S SMW-K78 Glossary: Terms and abbreviations ARB: Arbitrary Waveform Generator An I/Q modulation source forming an integral part of the supported signal generators. The ARB allows the playback and output of any externally calculated modulation signal in the form of waveform file as well as the generation of multi carrier or multi segment signals from waveform files.
  • Page 91 ® Glossary: Terms and abbreviations R&S SMW-K78 RADAR: Radio Detecting and Ranging RCS: Radar cross section, RCS or σ The RCS is a measure of the energy that an object intercepts and scatters back towards the radar. RUT: Radar under test VSG: Vector Signal Generator User Manual 1177.6252.02 ─...

  • Page 92: Glossary: Publications And References

    ® Glossary: Publications and references R&S SMW-K78 Glossary: Publications and references Symbols [1]: Rohde & Schwarz Application note 1MA127: "Introduction to Radar System and Component Tests" [2]: Rohde & Schwarz White Paper 1MA239: "Radar Waveforms for A&D and Automotive Radar" [3]: Rohde &...

  • Page 93: List Of Commands

    ® List of commands R&S SMW-K78 List of commands [:SOURce<hw>]:REGenerator:CATalog?......................67 [:SOURce<hw>]:REGenerator:DIAGram:TYPE....................89 [:SOURce<hw>]:REGenerator:LOAD......................67 [:SOURce<hw>]:REGenerator:OBJect:CATalog?....................81 [:SOURce<hw>]:REGenerator:OBJect:COPY:DESTination................82 [:SOURce<hw>]:REGenerator:OBJect:COPY:EXECute................. 82 [:SOURce<hw>]:REGenerator:OBJect:COPY:SOURce..................82 [:SOURce<hw>]:REGenerator:OBJect:ULISt:CATalog?..................88 [:SOURce<hw>]:REGenerator:OBJect<ch>:DIRection................... 85 [:SOURce<hw>]:REGenerator:OBJect<ch>:FEPNumber?................88 [:SOURce<hw>]:REGenerator:OBJect<ch>:HOLD:OFF.................87 [:SOURce<hw>]:REGenerator:OBJect<ch>:LOAD..................81 [:SOURce<hw>]:REGenerator:OBJect<ch>:NAME..................82 [:SOURce<hw>]:REGenerator:OBJect<ch>:OVELocity.................. 85 [:SOURce<hw>]:REGenerator:OBJect<ch>:PHASe[:OFFSet]................88 [:SOURce<hw>]:REGenerator:OBJect<ch>:POWer:RX................. 83 [:SOURce<hw>]:REGenerator:OBJect<ch>:POWer:RX:DEDication.............. 84 [:SOURce<hw>]:REGenerator:OBJect<ch>:POWer:RX:END?...............84 [:SOURce<hw>]:REGenerator:OBJect<ch>:POWer:RX:STARt?..............84 [:SOURce<hw>]:REGenerator:OBJect<ch>:RANGe:END................85 [:SOURce<hw>]:REGenerator:OBJect<ch>:RANGe:STARt................
  • Page 94 ® List of commands R&S SMW-K78 [:SOURce<hw>]:REGenerator:RESTart:ARM:EXECute..................70 [:SOURce<hw>]:REGenerator:RESTart:EXECute...................70 [:SOURce<hw>]:REGenerator:RESTart:MODE....................69 [:SOURce<hw>]:REGenerator:RESTart:RMODe?..................70 [:SOURce<hw>]:REGenerator:RESTart:SOURce................... 69 [:SOURce<hw>]:REGenerator:RESTart:STATtenuation..................71 [:SOURce<hw>]:REGenerator:RESTart:SYNChronize[:STATe]..............70 [:SOURce<hw>]:REGenerator:SIMulation:ANALyzer:FREQuency:APPLy............. 79 [:SOURce<hw>]:REGenerator:SIMulation:ANALyzer:STATus................ 79 [:SOURce<hw>]:REGenerator:SIMulation:CALibration:CORRection..............77 [:SOURce<hw>]:REGenerator:SIMulation:CALibration:LAEX.................76 [:SOURce<hw>]:REGenerator:SIMulation:CALibration:MODE............... 76 [:SOURce<hw>]:REGenerator:SIMulation:CALibration:URANge..............76 [:SOURce<hw>]:REGenerator:SIMulation:CALibration[:STATe]?..............77 [:SOURce<hw>]:REGenerator:SIMulation:CONNector................... 78 [:SOURce<hw>]:REGenerator:SIMulation:FREQuency.................. 78 [:SOURce<hw>]:REGenerator:SIMulation:LATency[:BZ].................76 [:SOURce<hw>]:REGenerator:SIMulation:LEVel:APPLy................79 [:SOURce<hw>]:REGenerator:SIMulation:LEVel:UPDated[:STATus]?............80 [:SOURce<hw>]:REGenerator:SIMulation:LEVel:VALid[:STATus]?..............80 [:SOURce<hw>]:REGenerator:SIMulation:LEVel?..................79 [:SOURce<hw>]:REGenerator:SIMulation:MINRange[:STATe]............... 78 [:SOURce<hw>]:REGenerator:SIMulation:PRF....................72 [:SOURce<hw>]:REGenerator:SIMulation:PRI....................72 [:SOURce<hw>]:REGenerator:SIMulation:SPERiod..................

  • Page 95: Index

    ® Index R&S SMW-K78 Index Additional attenuation ............30 Getting started ..............7 Analyzer Graph External attenuator ............. 30 Objects ................ 49 Reference level ............30 Application cards ..............9 Application notes ..............9 Help ..................7 Trigger .................33 Automatic estimation Blind zone ..............35 Installation ................
  • Page 96 ® Index R&S SMW-K78 OTA tests ................27 Standard settings .............. 27 Swerling model RCS ................47 RCS peak ..............47 Peak RCS RCS, mean ..............47 RCS calculation ............47 Simulation period ............48 Power reflection area Test coverage ............. 48 Setting .................

Table of Contents