This project implements frequency offset estimation algorithm for single carrier system QPSK. The phase modulation signal needs the same frequency reference carrier in the coherent demodulation of the receiver, and the frequency deviation often exists between the transmitter and the receiver. In order to eliminate this error, it must be implemented on the software level. The carrier frequency offset estimation is carried out by using the signal characteristics of QPSK four phase modulation.

Filename	Size	Update
freq_estimate\add_user_channel.m	284	2016-07-28
freq_estimate\insert_pilot.m	244	2016-07-28
freq_estimate\mod_qpsk.m	339	2016-07-28
freq_estimate\QPSK.m	1593	2018-04-12
freq_estimate\rx_freq_sync.m	426	2016-07-28
freq_estimate\rx_phase_sync.m	266	2016-07-28
freq_estimate\rx_phase_track.m	361	2016-07-28
freq_estimate\test.m	160	2016-07-28
freq_estimate	0	2018-04-12

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