Questions related to signal power calculation

[TobyXue]

Hello everyone,

I have a question related to calculating the average power of the received signal using the BladeRF 2.0 Micro XA-4 SDR and a MATLAB script based on the example found at: [https://github.com/Nuand/bladeRF/blob/m ... x_stream.m].

In my attempt to calculate the signal's average power, I applied either rms(x)^2/50 (assuming Zin is 50 ohms) in the script or utilised the bandpower(x) function (refer to: [https://nl.mathworks.com/help/signal/ref/bandpower.html]). However, upon reviewing the calculation results, I realised that I misunderstood the 'unit' of the received samples, as they are scaled from -2048 to 2047 within the range [-1, 1]. Can anyone please guide me on how to scale these samples into Volts?

Thank you very much in advance for your assistance. I look forward to hearing from you.