现代电子技术Issue(17)：1-4,8,5.
带判决反馈的GMSK差分解调算法研究与实现
Research and implementation of GMSK differential demodulation algorithm with decision feedback
摘要
Abstract
In VHF radio communication,GMSK suffers from significant inter-symbol interference because of its symbols co-herent. Since the traditional 1-bit differential demodulation algorithm of GMSK is not perfect,the 1-bit differential detection algo-rithm with decision feedback is presented based on the analysis of the GMSK signal characteristics. The two demodulation algo-rithms were simulated after comparing the two demodulation algorithms. Simulation results show that 1-bit differential detection algorithm with decision feedback obtains about 3 dB demodulation gain. This algorithm was implemented in FPGA by using VHDL language. It was applied to VHF radio communication succesfully.关键词
GMSK/判决反馈/差分解调/信号特性分析Key words
GMSK/decision feedback/differential demodulation/signal property analysis分类
信息技术与安全科学引用本文复制引用
卫洪春,姜凯..带判决反馈的GMSK差分解调算法研究与实现[J].现代电子技术,2014,(17):1-4,8,5.基金项目
国家自然科学基金（61152003）资助项目 （）
