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Re: [Discuss-gnuradio] GRC:Suitable Sink required

From: Josh Blum
Subject: Re: [Discuss-gnuradio] GRC:Suitable Sink required
Date: Mon, 20 Apr 2009 00:04:35 -0700
User-agent: Thunderbird (X11/20090318)

If you want to extract samples from a gnuradio data stream and process them in python, you should make a hierarchical block with a message sink inside. The wxgui blocks are all great examples for this.

Try http://gnuradio.org/trac/browser/gnuradio/trunk/gr-wxgui/src/python/fftsink_gl.py


Saleem Akhtar wrote:
It appears that gr.message_sink and gr.msg_queues are for digital data. but my 
flowgraph (periodogram) is for analog samples,

complex baseband samples from usrp --> stream to vector (vectors of fft_size) 
--> FFT
 --> complex to mag squared  --> (sink or block to be determined)

Is their no choice other than file sink?


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