| 一种PCM/DQPSK信号的软件解调算法 |
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| 作者姓名： | 姜萍 侯孝民 袁嗣杰 |
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| 作者单位： | 装备指挥技术学院，装备指挥技术学院，装备指挥技术学院 北京 101416，北京 101416，北京 101416 |
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| 摘 要： | 由于计算机技术的飞速发展,通过软件的方法实现对信号解调已成为可能,大大拓宽了信号接收和处理的途径,为信号事后处理提供了有效的手段。提出了一种DQPSK信号的软件解调算法,通过估计信号的瞬时相位来提取调制相位信息,恢复出原始的调制码。计算机仿真表明,这种算法能够正确实现对信号的解调,并且解调性能良好,运行效率较高。
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| 关 键 词： | PCM/DQPSK信号 软件解调 瞬时相位 位同步 |
A Software Demodulation Algorithm of PCM/DQPSK Signal |
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| Authors: | Jiang Ping Hou Xiaomin Yuan Sijie |
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| Institution: | Jiang Ping Hou Xiaomin Yuan Sijie |
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| Abstract: | With the development of computer,it becomes possible to demodulate signal with software,which enormously broadens the approaches of signal receiving and processing.The paper puts forward a software demodulation algorithm for the telemetry PCM/DQPSK sig- nal.The phase information of the modulated signal is gained by calculating the instantaneous phase d the signal,and the modulated codes are resumed.The computer simulation results indicate that the algorithm implements demodulation correctly and has good performance as well as high efficiency. |
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