With this description for removing this frequency-selective channel which solution exist in digital communications?
On Sun, May 8, 2022 at 10:36 AM sp h <stackprogra...@gmail.com> wrote: > Why when I send a complex file (With USRP x300) with harmonic sequence f1 > f2 f3 ...fn, In receiver (USRP x310) harmonic sequence gain is changed? > For example, I have a complex file the FFT of a signal has some harmonic > peaks f1 f2 ...fn > gain of harmonic peaks in the original file is: > f1:2 > f2:2 > f3:3 > f4:4 > ... > fn=3 > > But receiver loss or amplify harmonic peaks are not consonant > For example, in the receiver we had: > f1:5 > f2:1 > f3:4 > f4:7 > ... > fn=.1 > > So when I used MatLab to convert complex files to Wav and play file > original file and received file is not exactly the same... > some higher frequency is suppressed or the sound is more bass. Is this > subject related to TDH? > In USRP what's TDH? > https://en.wikipedia.org/wiki/Total_harmonic_distortion > can anyone guide me? > Thanks in advance > >
