Step 4: Perform A System Check; Step 4.1: Check The System Information Page; Step 4.2: Check The Reflection Diagrams - RADAC WaveGuide 5 Direction User Manual

Step 4. Perform a system check
This section explains how to inspect the quality of measurements after configuring and
rebooting the WaveGuide processing unit (the start-up process can take up to 5 minutes):

Step 4.1: Check the system information page

The system information table can be reached through the status menu item on the right
top. The system info page displays the communication status (as shown in Fig. 3.7). A
communication status "INIT" indicates that the WaveGuide processing unit is initiating the
communication process with the radar sensors. Once the communication process is initiated
(a process that can take up to five minutes after reboot) the displayed status becomes 'OK'.
Figure 3.7: System information.
In the same table, the ratio between the number of performed and invalid measurements
gives an indication of the system performance. When the system is set up in a correct man-
ner, the number of invalid measurements should be below 10% of the number of performed
measurements.
Step 4.2: Check the reflection diagrams
The reflection diagram for each sensor can be accessed via the sensor configuration page by
clicking on the corresponding "reflection" button (Fig. 3.8).
A reflection diagram is a graphic representation of a 25 [ms] scan, where the signal strength
[dB] is plotted against the measurement distance [m]. A scan consists of one up-sweep
(increasing frequency, blue curve) and one down-sweep (decreasing frequency, red curve).
Often several peaks are visible in a reflection diagram as shown in Fig. 3.8. This is caused
by the multiple signal reflections between radar, water surface and any objects within the
radar foot-print. The leftmost peak is generated by the so called internal reflection.
Based on the defined range maximum and minimum values, the WaveGuide system shows
the applied boundaries using vertical green lines. A horizontal green line shows the min-
imum accepted reflection strength (the value set as the Signal Minimum [dB] parameter).
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