WU Tuan-feng, YANG Xi-gen. Iterative channel estimation and decoding algorithm for quasi-coherent demodulation of Turbo coded GMSK signals[J]. 2006, (7): 106-111.DOI:
Turbo编码GMSK信号准相干解调时的迭代信道估计和译码研究
摘要
针对准相干解调Turbo编码GMSK信号
提出了一种简便的迭代信道估计算法。该方法基于Turbo码的迭代译码原理
将信道估计和译码联合考虑
利用译码器输出反馈进行迭代信道估计
从而提高了估计精度。仿真结果表明
该方法能显著地改善系统误码率性能。
Abstract
A new simple iterative channel estimation algorithm for quasi-coherent demodulation Turbo coded GMSK signals was presented. Based on the iterative decoding principle of Turbo code
the algorithm improved the channel esti- mation accuracy using output of decoder. Numerous simulation results show that the proposed algorithm can improve bit error rate (BER) performance dramatically.