USER’S MANUAL__________________________________________________________________
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7.10 Load Simulated Time Series Data (LSIMUL)
This command is provided as a diagnostic for proper functioning of the
RVP900 algorithms. It permits arbitrary simulated data samples to be input
to the processing routines, rather than sampled data from the A/D
converters as is ordinarily the case. Since the properties of the simulated
data are known exactly, it is possible to verify that the calculations within
the RVP900 are proceeding correctly.
The LSIMUL command (with operation=1) should be issued prior to the
PROC command which is being tested. This enables the simulated data
mode. The next PROC command will then wait for N (N = sample size)
LSIMUL commands (with operation=2) prior to outputting each ray. The
arrival of any other command during that time will cause the simulated
data mode to be exited, and error bit #10 will be set in the GPARM latched
status word. The error bit is also set if an LSIMUL command with
operation=2 is received while simulated data mode is disabled.
You may specify a single simulated data sample for every range bin, or a
pattern or simulated samples to be replicated over the range of bins. Most
RVP900 algorithms are independent of range, and can be tested with
identical data at every bin. Notable exceptions, however, are the "pop"
clutter filter, and range bin averaging procedures. In its full generality, the
LSIMUL command permits independent I and Q samples to be simulated
at every bin of every pulse. If this results in more host computer I/O than
is practical, then specify fewer simulated bins and allow the RVP900 to
replicate them internally.
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The available operations are:
0 Disable the use of simulated data. RVP900 returns to
acquisition and processing of live data from the A/D
converters.