Hello Kyeong, Thank you very much for your feedback. I was looking for an answer to "the phase response of the FFT outputs" and, by following your instructions, it worked perfectly fine.
Best regards, Artur Em dom., 19 de abr. de 2020 às 03:17, Kyeong Su Shin <kss...@postech.ac.kr> escreveu: > Hello Artur: > > "QT Frequency Sink" is basically FFT -> Mag^2 -> scaling, dB conversion -> > QT GUI Vector Sink. I am not sure if that is what you wanted. > > If you are looking for the phase in the *time domain*, then you should do > something like "Complex to Mag Phase" -> "QT GUI Time Sink" (and I guess > this is what you wanted). > > If you are looking for the phase response of the *FFT outputs* (basically > a phase version of the "QT Frequency Sink"), I guess you want to do > something like "Stream to Vector" -> "FFT" -> "Complex to Mag Phase (vec > len = fft size)" ->" QT GUI Vector Sink" (I think this is not what you were > looking for, but maybe I misunderstood your application, so I am explaining > this anyway). > > Regards, > Kyeong Su Shin > ------------------------------ > *보낸 사람:* Artur Nogueira <artur.no...@gmail.com> 대신 Discuss-gnuradio > <discuss-gnuradio-bounces+ksshin=postech.ac...@gnu.org> > *보낸 날짜:* 2020년 4월 19일 일요일 오전 7:40 > *받는 사람:* discuss-gnuradio@gnu.org <discuss-gnuradio@gnu.org> > *제목:* Phase plot > > Hi all, > > I'm facing some difficulties while trying to get a phase plot of a signal. > More specifically, I'm trying to get the phase difference between two > signals. > Since my signals are complex in the time domain (GMSK), I've tried to use > the "Complex to Arg" and eventually the "Complex to Mag Phase" blocks > before the "QT Frequency Sink". > The results are expressed in dB rather than in radians and I'm not sure if > they are correct. > > I'd like to know how you guys usually plot the phase spectra of signals. > > Thanks in advance. > > Best regards, > Artur > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> > Livre > de vírus. www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>. > <#m_-3940765543338399187_x_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >
