Dear All, I have a situation where I need to demodulate a wide bandwidth signal (70 Mbps QPSK modulated, having 35 MHz IF bandwidth and sampled at 105 MSPS ) in our lab. However, the signal generator will also add some amount of doppler shift at a rate of 1 kHz/s. Which PSK demodulation blocks are suitable for fast demodulation under some doppler shift. I I know that I can not use the Costas Loop or any other block that uses a feedback loop because of their speed limitations. I am considering to add a preamble to simplify things since I know high speed Satellite downlinks use Preamble. I guess the use of preambles make demodulation easier.
Please advise. -- View this message in context: http://gnuradio.4.n7.nabble.com/Which-block-for-Fast-PSK-demodulation-under-some-doppler-shift-tp63700.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
