Title :
Non-data-aided carrier frequency offset estimation of GMSK signals in burst mode transmission
Author :
Peng, Hua ; Li, Jing ; Ge, Lindong
Author_Institution :
Dept. of Inf. Sci., Inf. Eng. Univ., Zhengzhou, China
Abstract :
The paper presents a non-data-aided (NDA) carrier frequency offset estimation algorithm for GMSK modulation. A nonlinearity of the GMSK signal is shown to be a sine wave with frequency related to the carrier frequency offset. Based on that, a single frequency estimation method with large estimation range and low computational complexity is used to compute the carrier frequency offset. The estimator has a feedforward structure and is suitable for burst mode transmission. Its estimation accuracy is good and the estimation range is a quarter of the symbol rate, which is illustrated by simulation results.
Keywords :
computational complexity; continuous phase modulation; feedforward; frequency estimation; minimum shift keying; CPM; GMSK signals; burst mode transmission; computational complexity; continuous phase modulation; estimation range; feedforward structure; nondata-aided carrier frequency offset estimation; nonlinearity; sine wave; single frequency estimation; Clocks; Computational complexity; Computational modeling; Demodulation; Detectors; Frequency estimation; Maximum likelihood detection; Maximum likelihood estimation; Pulse modulation; Timing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1202708
