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From: | Fredrik Lingvall |
Subject: | Re: FFT: Finding signal frequency at wrong place |
Date: | Sun, 05 Dec 2010 10:39:03 +0100 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.12) Gecko/20101106 Lightning/1.0b3pre Thunderbird/3.1.6 |
On 12/05/10 10:04, Isak Delberth Davids wrote:
Try, freq = (0:length(signal)-1)/length(signal)*freqsamp; plot(freq,20*log10(abs(fft(signal)))); % dB scale ax = axis; axis([0 freqsamp/2 ax(3) ax(4)]); /Fredrik |
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