Re: [Discuss-gnuradio] how to use Log Power FFT module in python

[Josh Blum]

nansai hu wrote:
> I want to do some function in frequency domain and just writen a C++ block
> already.
> Now, I just want to use GRC to constuct a front end and connect to my own
> block.
>
> The interface bewteen these two is a power vector of FFT results and  I use
> a Log Power FFT module in GRC.
>
> My question is Log Power FFT module in GRC seems that have a very strange
> output format(not stream or vector),

It outputs stream, where each element in the stream is a vector of 
floats with length fft_size.

the output signature of the block is fft_size*sizeof(float)

specifically, what problem are you having?

-josh

> So what is the format of that module and How clould I use it if my C++ block
> have a float vector input(512 points power result of FFT).
>
> Thanks
>
>
>
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