Hi Yang, the Power of the FFT is only calculated inside the graphical sink, the connection between the USRP source and the graphical sink represents a complex sample stream.
I'm still not quite understanding what you really want the USRP to do, would you mind explaining that again? Best regards, Marcus On 12/04/2014 09:08 PM, Leo Yang wrote: > Hi sir, > I have ran the uhd_msg_tune.grc,but its quiet hard to understand the python > code for me. > > I just set the sample rate to 40M, and centre frequency to 2.4G, it comes > out power against the frequency of the signal and the graph seems more > static than dynamic. > > I wonder how it achieved without fft, and how to export the raw complex data > instead of power? > > cuz I want to install the gnuradio into a embedded system instead of PC, I'm > working on the data collection, after get the raw data, I will pass it to > the FPGA for the fft, and the output will be further processed for signal > classification. > > Thanks a lot > Yang > > > > -- > View this message in context: > http://gnuradio.4.n7.nabble.com/Log-raw-data-from-the-usrp-spectrum-sense-py-tp51503p51545.html > Sent from the GnuRadio mailing list archive at Nabble.com. > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
