| PCM/DQPSK信号差分解调软件化研究 |
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| 引用本文： | 刘东华,王元钦,冯春燕.PCM/DQPSK信号差分解调软件化研究[J].装备指挥技术学院学报,2005,16(3):91-94. |
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| 作者姓名： | 刘东华 王元钦 冯春燕 |
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| 作者单位： | 装备指挥技术学院,航天测控工程研究中心,北京,101416 |
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| 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。
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| 关 键 词： | PCM/DQPSK 差分解调 数字测频 希尔伯特鉴相 |
| 文章编号： | 1673-0127(2005)03-0091-04 |
| 修稿时间： | 2004年4月6日 |
Study on Software Differential Detection of PCM/QDPSK Signal |
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| LIU Dong-hua,WANG Yuan-qin,FENG Chun-yan.Study on Software Differential Detection of PCM/QDPSK Signal[J].Journal of the Academy of Equipment Command & Technology,2005,16(3):91-94. |
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| Authors: | LIU Dong-hua WANG Yuan-qin FENG Chun-yan |
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| Abstract: | 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. |
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| Keywords: | PCM/DQPSK differential detection digital frequency measurement Hilbert discrimination |
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