Title :
A General Carrier Lock Detection Algorithm for MPSK Signal
Author :
Zhu, Yiwen ; Zhan, Yafeng ; Xu, Gang ; Han, Meng
Author_Institution :
Southwest Electron. Telecommun. Technol. Res. Inst., Chengdu, China
Abstract :
A general metric function of carrier lock detection, based on Mth-power for MPSK signal is proposed. The expectation of this metric function´s output is independent of noise, only related to the signal power. It is easy to judge the carrier loop whether in a lock state or not, with low complexity cost. By median filtering the output of metric function, the reliability of carrier lock detection could be improved. Theoretical analysis and computer simulations show that the proposed method is universal and effective for MPSK systems.
Keywords :
median filters; phase shift keying; radiocommunication; MPSK signal; MPSK system; carrier lock detection algorithm; complexity cost; median filtering; metric function; multiple phase shift keying; reliability; Binary phase shift keying; Demodulation; Detectors; Filtering; Measurement; Noise;
Conference_Titel :
Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3708-5
Electronic_ISBN :
978-1-4244-3709-2
DOI :
10.1109/WICOM.2010.5600610
