2 things that come to mind: 1. stream -> fft -> argmax 2. in sandia fhss utilities they have an FFT Peak block that does what you want
https://github.com/sandialabs/gr-fhss_utils Kyle Logue Senior Engineering Specialist ⚝ The Aerospace Corporation ________________________________ From: Discuss-gnuradio <[email protected]> on behalf of james jordan <[email protected]> Sent: Monday, November 16, 2020 19:09 To: [email protected] <[email protected]> Subject: how to auto detect peak frequency in QT FFT sink Hi all, i want to see the fft of the signal and also want to detect the peak frequency if there is a peak signal. how to achieve this?
