| DSP在遥控数据PSK解调器中的应用 |
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| 引用本文： | 何继爱,张自英,王维芳. DSP在遥控数据PSK解调器中的应用[J]. 兰州理工大学学报, 2007, 33(5): 96-98 |
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| 作者姓名： | 何继爱 张自英 王维芳 |
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| 作者单位： | 兰州理工大学,计算机与通信学院,甘肃,兰州,730050;上海航天时代电子有限公司,上海,200083 |
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| 摘 要： | 针对常规锁相环PSK解调电路复杂,致使设备在电源、功耗、体积和质量上存在缺点,不宜在卫星系统中应用的问题,提出应用定点DSP技术对遥控副载波(PSK)进行解调软硬件实现的方法,分析其原理并在XX-1小卫星上进行试验测试.结果表明,软件锁相算法及硬件实现是现实可行的,能较好地完成遥控数据的传输.
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| 关 键 词： | 软件锁相环 PSK解调 滤波 |
| 文章编号： | 1673-5196（2007）05-0096-03 |
| 修稿时间： | 2007-04-05 |
Application of DSP in remote data PSK demodulator |
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| HE Jiai,ZHANG Zi-ying,WANG Wei-fang. Application of DSP in remote data PSK demodulator[J]. Journal of Lanzhou University of Technology, 2007, 33(5): 96-98 |
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| Authors: | HE Jiai ZHANG Zi-ying WANG Wei-fang |
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| Affiliation: | 1. College of Computer and Communication, Lanzhou Univ. of Tech., Lanzhou 730050, China; 2. Shanghai Aerospace Times Electronics Corporation, Shanghai 200083, China |
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| Abstract: | The conventional demodulation circuit for phase lock loop PSK is complex.And it makes its devices disadvantageous in connection with the power source,energy consumption,volume,and mass.So it is not suitable to apply it in satellite systems.An implement method of software and hardware was proposed for demodulation of remotely controlled subcarrier with point DSP technique.Its principle was analyzed and the method was tested on a mini-satellite XX-1.The results showed that software PLL algorithms and hardware implementation were practicable,and the transmission of remote data could be realized. |
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| Keywords: | software PLL PSK demodulation filter |
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