I have been wondering about how we can estimate the SNR in Wideband MIMO measurement system? So far, I analyze the average path gain in all snapshots, I choose the lowest path gain snapshot as the noise level. My SNR will be the average power (power of channel matrix) divided by this noise level. Is this correct approach? I have been wondering about how we can estimate the SNR in Wideband MIMO measurement system? So far, I analyze the average path gain in all snapshots, I choose the lowest path gain snapshot as the noise level. My SNR will be the average power (power of channel matrix) divided by this noise level. Is this correct approach?