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I have a spread spectrum channel sounder running the following transmitter and receiver:

tx

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When running it over the air (~2km), I get the plot of the correlator output:

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I can see that there are peaks every pn period. How do I go about processing this data to extract rms delay spread, delay spread, and CIR?

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  • $\begingroup$ See this post that describes the least means squared approach to estimating the channel with a PN sequence as the sounding pattern: dsp.stackexchange.com/questions/31318/… what you have here is the result of a sliding correlation on your received data; if you have access to the complex data result (not the power or magnitude only) you can then use it with the process outlined at that post. $\endgroup$ – Dan Boschen Jul 15 at 20:19

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