| 高速DQPSK解调器的算法及实现 |
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| 引用本文： | 高敏,朱克勤.高速DQPSK解调器的算法及实现[J].上海航天,2004,21(2):24-27. |
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| 作者姓名： | 高敏 朱克勤 |
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| 作者单位： | 上海航天测控通信研究所,上海,200086 |
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| 摘 要： | 介绍了一种高速四相差分相移键控(DQPSK)解调器的算法。该方法基于锁相环原理，并采用了现场可编程逻辑门阵列(FPGA)芯片进行载波恢复、差分解码、时钟恢复和判锁等，其设计与实现不仅方便，而且可靠性高。
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| 关 键 词： | DQPSK解调器 算法 四相差分相移键控 差分解码 载波恢复 现场可编程逻辑门阵列 卫星通信 |
| 文章编号： | 1006-1630(2004)02-0024-04 |
| 修稿时间： | 2003年3月24日 |
The Algorithm of a High-Speed DQPSK Demodulator and Its Implementation |
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| GAO Min,ZHU Ke-qin.The Algorithm of a High-Speed DQPSK Demodulator and Its Implementation[J].Aerospace Shanghai,2004,21(2):24-27. |
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| Authors: | GAO Min ZHU Ke-qin |
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| Abstract: | The algorithm of a high-speed differential quardrature phase shift keying demodulator was presented in this paper, which was based on the principle of phase-locked loop. The solution of carrier recovery, differential decoding, timing recovery and lock decision by using field programmable gate array were applied to make the demodulator simple and reliable in design and implement. |
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| Keywords: | Differential quardrature phase shift keying demodulation Carrier recovery Timing recovery Field programmable gate array |
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