摘要
提出了一种新的DQPSK信号差分解调的软件实现方法,详细介绍了此种软件差分解调方法的基本原理及实现过程,分析了解调过程中多普勒频率对解调结果的影响.计算机仿真结果表明:该方法解调性能优越,能有效地抑制多普勒频率对解调的影响,便于软件编程及DSP器件实现,具有一定的应用价值.
The paper proposes a new differential detection method of PCM/DQPSK signal. It discusses the basic theory and the course about the method and analyses the effects by Doppler velocity during the course of demodulation. The computer simulation results have shown that the method has good detection performance, can effectively restrain the effect of the Doppler velocity, is convenient to realize the software programming and DSP, and has definite application value.
出处
《装备指挥技术学院学报》
2005年第3期91-94,共4页
Journal of the Academy of Equipment Command & Technology
基金
部委级资助项目
关键词
PCM/DQPSK
差分解调
数字测频
希尔伯特鉴相
PCM/DQPSK
differential detection
digital frequency measurement
Hilbert discrimination
