USRP Software Radio
Questions about Noise Estimation in Packet-based Digital Link example
I studied the Packet-based Digital Link example that was uploaded on NI here: https://forums.ni.com/
and I have a couple questions about it.
Can you help me understand what are sub vi's named "NoiseEst_And_Chop_Shell.vi" and "sub_est_noise_power - G1.vi" and what they do? I know it crops away portions of the acquired signal that don't exceed a set noise level but why the Bin Size is set to 5? Why we compare the size of samples with the 3000 number? And to obtain the energy threshold, why'd you compare it with 1e-6? It's unclear for me.
I have included pictures of these sub vi's below. I would be extremely grateful for your help. Thank you in advance.
and I have a couple questions about it.
Can you help me understand what are sub vi's named "NoiseEst_And_Chop_Shell.vi" and "sub_est_noise_power - G1.vi" and what they do? I know it crops away portions of the acquired signal that don't exceed a set noise level but why the Bin Size is set to 5? Why we compare the size of samples with the 3000 number? And to obtain the energy threshold, why'd you compare it with 1e-6? It's unclear for me.
I have included pictures of these sub vi's below. I would be extremely grateful for your help. Thank you in advance.
