| 宽带信号角跟踪和四通道单脉冲方案 |
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| 引用本文： | 刘嘉兴.宽带信号角跟踪和四通道单脉冲方案[J].飞行器测控学报,2011(5):20-25. |
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| 作者姓名： | 刘嘉兴 |
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| 作者单位： | 中国电子科技集团公司第十研究所; |
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| 摘 要： | 分析了宽带信号角跟踪的特殊问题及其实现方案。基于互相关函数的角误差检测方法,推导出了在非相关噪声及相关噪声背景下差路信号的输出信噪比及其角度随机误差的数学表达式,进而给出了带宽增益和最佳带宽的概念,以及提高输出信噪比的方法。为了在低载噪比（C/N）时获得角捕获所需要的和路信号以及差路的归一化信号,提出了四通道单脉冲方案。最后归纳出了低C/N时宽带信号角捕获和角跟踪的几种方法并提出了建议。
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| 关 键 词： | 角跟踪 宽带信号 互相关检测 角误差 归一化 单脉冲 |
Study on Angular Tracking of Wideband Signals and Four-Channel Monopulse Technology |
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| LIU Jiaxing.Study on Angular Tracking of Wideband Signals and Four-Channel Monopulse Technology[J].Journal of Spacecraft TT&C Technology,2011(5):20-25. |
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| Authors: | LIU Jiaxing |
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| Institution: | LIU Jiaxing(Southwest Institute of Electronic Technology,Chengdu 610036) |
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| Abstract: | The special problem of wideband signal angular tracking and implementation are analyzed.Using angular error detection method based on cross correlation function,the output signal to noise ratio(SNR) mathematical expression of signals from the difference channel and its random angular errors are derived in non-correlation and correlation noise backgrounds.Furthermore,the concepts of bandwidth gain and optimum bandwidth are proposed and the method to improve output SNR is given.To obtain normalized signals fr... |
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| Keywords: | Angular Tracking Wideband Signals Cross Correlation Detection Angular Error Normalization Monopulse |
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