FMCW OTH radar programs

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David Lonard

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Jul 25, 2021, 2:12:03 PM7/25/21

to Amateur radio interferometry

Hello everyone,

Here are some programs for capturing and analyzing OTH FMCW signals. OTHACQ3.py will capture signals as cross correlated products and save the relevant FMCW signals for future analysis as FITs files. OTHread1.py will allow you to visualize the FITs files. ROTHRcr0 and ROTHRci0 is a sample cross correlated burst that you can play with.

David

OTHread1.py

OTHACQ3.py

David Lonard

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Jul 25, 2021, 2:17:54 PM7/25/21

to Amateur radio interferometry

Google wont let me post the template and example .fit files for some reason.

If you run OTHACQ3.py, you should be able to slice out a FMCW signal from the gcn array. Slice out the proper signal using NumPy array indexing and save the two parts of the complex array as .fits files. Then you can re-run the program and start collecting data.