Search found 2 matches

by adlofts
Fri Apr 06, 2018 7:50 am
Forum: Digital Signal Processing
Topic: Help on matlab and IQ samples FFT processing
Replies: 5
Views: 7377

Re: Help on matlab and IQ samples FFT processing

Hello, Thanks for your help. If i understand: 1. The %ADC scale from -1 to 1 matches with the 0.2 to 3.3V is from the LMS6 data sheet Vpp? Or is the ADC reference scale a different parameter? 2. The tektronix implies we should be doing 20log10(signal(:,1)^2 + signal(:,2)^2) rather than 20log10(abs(y...
by adlofts
Wed Apr 04, 2018 8:56 am
Forum: Digital Signal Processing
Topic: Help on matlab and IQ samples FFT processing
Replies: 5
Views: 7377

Re: Help on matlab and IQ samples FFT processing

Hello, I have been working on something similar and was hoping you could help me out as well @bglod. I would like to convert my RX units to dBuV then to V/m since many exposure projects are expressed this way. I have done as you recommended: y = (y(:,1)./ 2048.0) + (y(:,2)./ 2048.0)*1i; % similar to...