[Discuss-gnuradio] FFT Scaling

[Gerome Jan L]

There is an internal scaling effect of fftlen (the length of your FFT) in the FFT block. How do I unscale or remove the scaling factor in the python generated by thr GRC? I tried the one suggested in the faq,

... forward FFT --> multiply_const_cc(fftlen*[1.0/fftlen,]) --> reverse FFT ...



but it doesn't seem to work. I know I am missing something. How do I insert this into this line of code in my python?

1. self.fft_vxx_0 = fft.fft_vcc(1024, True, (window.rectangular(1024)), True, 1)


or here?
2. self.blocks_complex_to_mag_squared_0 = blocks.complex_to_mag_squared(1024)



Thank you in advance.





Attached is my flow graph.




Best,

Gerome Jan M. Llames 

"Design is not just what it looks like and feels like. Design is how it works."  - Steve Jobs

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