Signal has nothing to do with TV. Paul Mathews schrieb: > Here's a screen shot of FFT output: > > http://i394.photobucket.com/albums/pp28/optoeng/2peaks.jpg > > The image is typical, in that there are multiple narrow local maxima, > but the amplitude of these particular peaks is quite a bit higher than > I expect 'in the field'. I'm trying to work out an efficient way to > compute the locations and relative amplitudes of these maxima. Can > someone please suggest either an algorithm and/or the most similar > gnuradio application that I can examine as candidates for this > analyis? Thanks. Paul Mathews
I thought Analog TV was going of the air in the US... The difficulty is that when the FFT is taken from the real world, and the signal tends to the noise level, most 'peak' detection algorithms fail, well, have lots of noise in the 'accept' condition... So, long term averaging, and 'knowing' that a peak would appear at offset x from the right or left side of the spectrum will be more likely to succeed. John Clark. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
