| BPSK-PM深空通信信号载波捕获方案 |
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| 引用本文： | 王晓东,甘淼,王小锭,蒋伟,罗武.BPSK-PM深空通信信号载波捕获方案[J].空军工程大学学报,2011,12(1):64-67. |
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| 作者姓名： | 王晓东 甘淼 王小锭 蒋伟 罗武 |
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| 作者单位： | 北京大学信息科学技术学院,北京,100871 |
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| 摘 要： | BPSK-PM是一种以BPSK为副载波调制方式,而主载波使用PM调制方式的调制体制.这种体制使调制后的遥测遥控数据频谱与载波频谱分离,残留载波可用于测角测速和跟踪,因而常用于深空通信.首先介绍BPSK-PM调制体制,分析了其调制信号的频谱特性,然后根据应用场景要求提出了中频数字接收和载波捕获方案,其中载波捕获方案分为基于FFT的频率搜索和基于全数字锁频环技术的频率跟踪2个部分,并对这2部分做了详细的分析.最后给出了该载波捕获方案的实际应用案例,该载波捕获方案的有效性已在实际应用中得到初步验证.
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| 关 键 词： | 载波捕获 频率搜索 频率跟踪 |
The Carrier Acquisition Scheme of BPSK-PM Signal |
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| WANG Xiao-dong,GAN Miao,WANG Xiao-ding,JIANG Wei,LUO Wu.The Carrier Acquisition Scheme of BPSK-PM Signal[J].Journal of Air Force Engineering University(Natural Science Edition),2011,12(1):64-67. |
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| Authors: | WANG Xiao-dong GAN Miao WANG Xiao-ding JIANG Wei LUO Wu |
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| Institution: | WANG Xiao-dong,GAN Miao,WANG Xiao-ding,JIANG Wei,LUO Wu(School of EECS,Peking University,Beijing 100871,China) |
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| Abstract: | BPSK-PM is a modulation mechanism in which BPSK is used as its sub-carrier modulation mode and PM as its main-carrier modulation mode.This mechanism makes the spectrum of the modulated telemetry signal separate from that of carrier signal,while the residual carrier can be applied in A/V measuring and tracking.This paper firstly introduces the BPSK-PM modulation mechanism and analyzes the spectrum characteristics of its modulation signal,and then proposes a mid-frequency digital reception and carrier acquisi... |
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| Keywords: | BPSK-PM |
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