Product Manual

16
RADAR COMMANDS
*TS COMMAND & HARDWARE SELF-TEST (CONTINUED)
When in Advance Mode the radar will only accept and report simulated targets that are advancing. If a recede
simulated target is requested the radar processing will reject the target as ‘wrong direction’ and only the
#TS:COMPLETE<CR>
message will be sent as confirmation that the simulation has been completed. When in Recede mode
vice versa.
It is recommended that the system uses the following pass/fail criteria for acceptance to specification for a radar
self-test. It is also recommended that after power-up of the radar, the host system calls the radar self-test
function to simulate at least one approaching and one receding target. When in Bi-Directional mode the radar
will report both advancing and receding simulated targets.
Parameter Pass Criteria
Direction 100% correct
Speed ≤ ± 1.0mph
Target Range ≤ ± 1.0m
Target Amplitude N/A
Checksum 100% correct
The hardware target simulator is fully independent of the radar measurement system. This is used to verify
the operation of the radars measurement circuitry. The self-test does NOT operate automatically on power-up
of the radar. During simulation the microwave front end is disconnected from the ADC to avoid any possible
interference with the simulation.
The radar self-test function can be called at any time using the *TS command.
The *TS command calls a pre-loaded simulated test target condition. There is a selection of pre-loaded test
target conditions as set out.
To distinguish real targets from simulated targets the radar inserts an X or a Y in the direction fields of all related
messages produced.