Title :
An improved feed-forward timing estimation for GMSK signal
Author :
Li, Jing ; Peng, Hua ; Ge, Lindong
Author_Institution :
Dept. of Inf. Sci., Inf. Eng. Univ., Henan, China
fDate :
31 May-2 June 2004
Abstract :
An improved nondata-aided (NDA) timing recovery algorithm for GMSK modulation is presented. The timing epoch is extracted from the period component of the received signal´s square by means of averaging its auto-correlations. The auto-correlation with relatively lower SNR is ignored in the presented estimator and thus a better performance is achieved. A prefiltering scheme is also proposed to strengthen the period component of the received signal´s square, which can make further improvement on the estimator. The simulation results are given to illustrate the performances of the improved algorithm.
Keywords :
feedforward; filtering theory; minimum shift keying; synchronisation; GMSK modulation; GMSK signal; SNR; autocorrelation; feed-forward timing estimation; period component; prefiltering scheme; received signal square; timing epoch extraction; timing recovery algorithm; Autocorrelation; Computational complexity; Continuous phase modulation; Data mining; Feedforward systems; Frequency estimation; Information science; Phase locked loops; Timing; Training data;
Conference_Titel :
Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on
Print_ISBN :
0-7803-7938-1
DOI :
10.1109/CASSET.2004.1321903
