| 高动态多进制扩频信号的载波跟踪技术研究 |
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| 引用本文： | 黄烈超,张天骐,谭方青,余熙.高动态多进制扩频信号的载波跟踪技术研究[J].电视技术,2012,36(3):114-117. |
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| 作者姓名： | 黄烈超 张天骐 谭方青 余熙 |
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| 作者单位： | 重庆邮电大学信号与信息处理重庆市重点实验室,重庆,400065 |
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| 摘 要： | 针对高动态环境下多进制扩频信号的载波同步问题,在分析锁相环(PLL)和锁频环(FLL)环路各自优点的基础上,研究了采用锁频环和锁相环相结合的方式进行载波信号跟踪。利用FLL动态适应能力较强和PLL具有较好跟踪精度的特点,实现动态信号的快速、精确跟踪。理论分析和仿真结果表明,该方法具有良好的跟踪效果。
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| 关 键 词： | 高动态 多进制扩频 载波跟踪 锁频环 锁相环 |
Study of Carrier Tracking for High Dynamic M-ary Spread Spectrum Signals |
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| HUANG Liechao
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ZHANG Tianqi
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TAN Fangqing
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YU Xi.Study of Carrier Tracking for High Dynamic M-ary Spread Spectrum Signals[J].Tv Engineering,2012,36(3):114-117. |
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| Authors: | HUANG Liechao ZHANG Tianqi TAN Fangqing YU Xi |
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| Affiliation: | (Chongqing Key Laboratory of Signal and Information Processing,Chongqing University of Posts and Telecommunications,Chongqing 400065,China) |
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| Abstract: | For the question of carrier synchronization of high-dynamic M-ary spread spectrum signals,based on analyzing the advantages of PLL and FLL,a new method of carrier tracking combining FLL with PLL is presented in this paper.The dynamics of the signal can be removed by FLL,and the phase can be tracked precisely by PLL.Theory analysis and simulation results show that this method has the favorable effect. |
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| Keywords: | high dynamic M-ary spread spectrum carrier tracking FLL PLL |
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