What specific measured input data is needed to generate a Range Doppler Map using phased.Ran​geDopplerR​esponse command?

I have captured I/Q data of a radar response and want to display it in the Range Doppler Map display. Specifically, using a Signal Hound's captured I/Q data, what proceessing, if any, is required to ingest intor the pahse.RangeDopplerResponse command? Documentation implies it is the I/Q data sets of measured samples for each PRI, but this generates a limited range in the response (only one or two lines of data in the output response). Have tried to use an FFT of the I/Q data, but that did not seem to work much better. Is there a soup to nuts example of how this MatLab function works that I might be able to process measured I/Q data properly to get a full Range Doppler Map output that captures the content of a measured radar return?

The I/Q data is ordered in M rows of N time samples for each PRI of the vitim radar (one source or K=1).

Thank you for any suggestions.

Answer 1

[Akash Gopisetty]

Hi Bruce,

This example might be useful to refer to: Cooperative Bistatic Radar I/Q Simulation and Processing

It uses simulated I/Q data but covers viewing the raw I/Q signals and then processing it for creating a range-doppler map using the phased.RangeDopplerResponse object.

Hopefully that helps!

[Bruce]

Thanks for the help. Definitely headed in the right direction.

Also found this link that allowed me to use the online MatLab to test my data and process it in a like way:

https://www.mathworks.com/help/phased/ref/phased.rangedopplerresponse-system-object.html

Thank you again for your time.