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| From: | Josh Blum |
| Subject: | Re: [Discuss-gnuradio] Question about the FFT |
| Date: | Sat, 24 Oct 2009 00:19:41 -0700 |
| User-agent: | Thunderbird 2.0.0.23 (X11/20090817) |
The second peak have to be:
Frequency: 3kHz
Amplitudo: -45dB
The second peak is 20*math.log10(9) dB down from the first one. Thats exactly what you should expect:
http://en.wikipedia.org/wiki/Triangle_wave
The amplitudo of the first peak also not correct.
You should take a look at logpwrfft.py -Josh
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