Title :
Viterbi Algorithm Based Frequency Offset Estimation for GMSK
Author :
Hu, Deng-peng ; Li, Hong-wei ; Guo, Ying ; Fan, Chang-zhou
Author_Institution :
Inst. of Telecommun. Eng., Air Force Eng. Univ., Xi´´an
Abstract :
A new nondata-aided frequency offset estimation method has been proposed for GMSK which is based on Viterbi algorithm to remove the information phase of the complex envelope signal. It has wide frequency offset estimation range, and its feedforward structure made itself simple digital implementation. Its complexity would be controlled by the Viterbi algorithm parameter. Simulation results have shown the validity of the algorithm in frequency offset estimation. At last, the normalized mean square errors (MSE) performance of the algorithm has also been proposed in additive white Gaussian noise channel
Keywords :
AWGN channels; feedforward; frequency estimation; maximum likelihood estimation; mean square error methods; minimum shift keying; GMSK; Viterbi algorithm; additive white Gaussian noise channel; digital implementation; feedforward structure; information phase removal; nondata-aided frequency offset estimation method; normalized mean square errors; AWGN; Additive white noise; Bandwidth; Continuous phase modulation; Frequency estimation; Frequency synchronization; Mean square error methods; Phase estimation; Timing; Viterbi algorithm;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2006. WiCOM 2006.International Conference on
Conference_Location :
Wuhan
Print_ISBN :
1-4244-0517-3
DOI :
10.1109/WiCOM.2006.153
