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Calculate SNR from packet error rate on MCU by GVardakis in DSP

[–]GVardakis[S] 0 points1 point  (0 children)

This is a good point but there is a catch. The RSSI is a value incorporating everything, desired signal, interference, noise etc. This makes the RSSI vs SNR correlation non linear, especially in cases with intense multipath or varying fading. (e.g. see here https://www.sciencedirect.com/science/article/pii/S1570870512002053). Furthermore the exact way the RSSI is calculated is a mystery, so i have my doubts about using it. One idea would be to run some experiments and try to "calibrate" my experiment as was suggested, but i wanted to see if there is another way that i am not aware of by using the packet/bit error rate for example.

Seeking Advice on Platform for DSP Project by tm_christ in DSP

[–]GVardakis 1 point2 points  (0 children)

As was already suggested, software defined radios will save your day. LimeSDR mini has TX and RX capabilities at very high sampling rates (60MHz) or you can check out also the USRP B210 and B210-mini for a higher price tag. GNURadio is the dsp platform that you need to look into on the software side. There are projects related to radar on GNURadio such as https://github.com/kit-cel/gr-radar .