On 10/01/2016 04:46 PM, Juan Antonio wrote: > Hello, someone would know how to calculate the impulse response of a > COFDM, DVB-T channel with an SDR device? > > Thank you in advance > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
An inverse DFT on a sinc function in the frequency domain yields a sine function in the time domain. And a DFT on the sine function in the time domain yields a sinc function in the frequency domain. I presume the "C" in COFDM means to chop up the bandwidth into carriers such that the sinc function in one channel hits nulls in the other channels. Piece of cake in theory. There's a gr-dvbt project on github https://github.com/BogdanDIA/gr-dvbt I don't know anything about it - I don't even know if it works. -- Cinaed _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
