Vaisala RVP900 - Load Simulated Time Series Data (LSIMUL)

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| | | | | | | | | | | | | | | | |
| Reserved (Zero) | Output 60
|----------------------------------------------------------------|
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| Reserved (Zero) | Output 64
|----------------------------------------------------------------|
8.11 Load Simulated Time Series Data
(LSIMUL)
LSIMUL acts 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 waits
for N (N = sample size) LSIMUL commands (with Operation=2) prior to outputting each
ray. The arrival of any other command during that time causes the simulated data mode to
be exited, and error bit #10 is 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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| Operation | 0 1 0 1 0 | Command
|--------------------------------------------|-------------------|
Chapter 8 – Host Computer Commands
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