User's Manual

P440 Data Sheet / User Guide DRAFT 17

The MRM RET GUI allows the user to:

 Define all of the configuration parameters, download them to the P440, and save and retrieve

configurations from disk

 Initiate radar transmissions

 Collect, display, and log received data to disk

Furthermore, the MRM RET GUI has an associated task which will also:

 Bandpass the received data

 Motion filter the data

 Detection filter the data

 Report detections as well as the first arriving detection

This filtering task provides basic motion filter functionality and allows the user to tune the filter

constants. If desired, the user can also log all of this information with the raw data.

It should be noted that these filters are very general in nature and are not optimized for any particular

application. They are offered to the system developer as an example and the source code for the

filters can be found in the MRM RET User Guide.

The MRM RET GUI and associated sample code allow the user to exercise the P440 in a number of

important ways. Consider the following three examples:

Example 1 - I/Q Doppler processing: MATLAB Sample Application #3 allows the user to exercise

several radar modes. One mode of operation involves measuring the radar return from a moving

target and then using I/Q Doppler processing to produce a plot of a Range vs. Doppler shift. An

example plot is shown in Figure 7.

Fig. 7: Range vs Doppler shift from an approaching target

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Range (m)

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Doppler Shift (Hz)