| 非相干扩频捕获的匹配滤波器参数分析 |
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| 引用本文： | 王浩然,郝学坤,潘申富.非相干扩频捕获的匹配滤波器参数分析[J].无线电工程,2011,41(4):29-30,33. |
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| 作者姓名： | 王浩然 郝学坤 潘申富 |
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| 作者单位： | 中国电子科技集团公司第五十四研究所,河北石家庄,050081 |
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| 摘 要： | 在直接序列扩频传输系统中,接收端通常利用匹配滤波器实现扩频信号的初始捕获,扩频码同步时匹配滤波器的输出信噪比是决定捕获性能的一个重要因素。针对非相干直接序列扩频信号,通过理论推导和仿真验证得到了匹配滤波器输出信噪比与载波频差、扩频比以及匹配滤波器参数之间的关系,该结论可以为匹配滤波器的设计提供依据。
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| 关 键 词： | 非相干扩频 匹配滤波器 信噪比 |
Parameter Design of Match Filter for Noncoherent DSSS Signal Acquisition |
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| WANG Hao-ran,HAO Xue-kun,PAN Shen-fu.Parameter Design of Match Filter for Noncoherent DSSS Signal Acquisition[J].Radio Engineering of China,2011,41(4):29-30,33. |
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| Authors: | WANG Hao-ran HAO Xue-kun PAN Shen-fu |
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| Affiliation: | WANG Hao-ran,HAO Xue-kun,PAN Shen-fu(The 54th Research Institute of CETC,Shijiazhaung Hebei 050081,China) |
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| Abstract: | The receiver usually implements initial acquisition of DSSS signal by match filter in DSSS system.The output SNR of match filter after PN code synchronization is an important factor which decides the acquiring performance.The relation between SNR of match filter and carrier offset,spreading rate and the parameters of match filter has been deduced theoretically and verified by simulation in this paper. It can be used to design the match filter of receiving system. |
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| Keywords: | noncoherent DSSS match filter signal-to-noise ratio |
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