Multipath Fading Files - DBM ACE9600 Operating Manual

Advanced Channel Emulator
48
hardware configuration, the input and output frequency are either
independently tunable, or are slaved together.
• Each data line consists of four characters, in a "xxxx" format
•
Range is 800 to 2600 MHz in 1 MHz steps.
•
Step size between any two adjacent points is limited only by
the total frequency range.
•
Units are MHz
Mu ltip ath Fa din g File s
All of the twelve paths in a multipath channel can be driven
dynamically by a unique data file. During a dynamic run, the path
values for path Doppler, Delay, Loss, and AoA are modified
sequentially according to the fading file values.
Multipath type filenames must begin with "MPF" and end with
".DAT". The first line in the file is a value that represents the number
of sample points in the file.
The second through thirteenth line in the file represents the path Type,
CorrPath, CorrVal, Rate, StdDev, and Kfactor settings, which remain
fixed during a dynamic run.
Each subsequent line contains Doppler, Loss, Delay and AoA values
for each of the 12 paths. Each of these path settings must begin with a
semi-colon delimiter ";" and use an ASCII space character to separate
the four values. If a path is off, the values between semi-colons are
ignored.
The assumed resolution, range and units for each value is as follows:
Type Units
CorrVal %
Rate Hz
StdDev dB
Kfactor dB
Doppler Hz
Loss dBm
Delay usec
usec
Aoa degrees 1 degree 0 to 180 degrees
3
RICE 1 20 0 0 10
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
RICE 12 30 10 10 20
;0 0.000 0.0 0;;;;;;;;;;;11 0.011 1.1 11;
;12 0.012 1.2 12;;;;;;;;;;;23 0.023 2.3 23;
Resolution
1% 0 to 100%
1 Hz
1 dB 0 to 12 dB
1 dB -10 to 20 dB
1 Hz 0 to 10,000Hz
0.1 dBm 0.0 to 30.0 dBm
0.001 usec
Operations Manual
dBm
Range
0 to 100 Hz
0.000 to 9.996
ACE9600