| 快速多分量LFM信号的检测与参数估计方法 |
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| 引用本文： | 祝俊,陈兵,唐斌.快速多分量LFM信号的检测与参数估计方法[J].电子测量与仪器学报,2008,22(1):25-29. |
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| 作者姓名： | 祝俊 陈兵 唐斌 |
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| 作者单位： | 电子科技大学电子工程学院,成都,610054 |
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| 摘 要： | 研究了噪声环境中的多分量LFM信号的检测以及参数估计问题.在分析和比较了时延相关解线调法和分数阶傅立叶变换(FrFT)扫描法的基础上,提出了一种新方法,该方法将LFM信号的检测问题简化为小范围的一维搜索问题,从而有效的减小运算量和分离强弱信号,同时在低SNR情况下的参数估计性能接近CRLB(Cramer-Rao low bounds).仿真结果证实了方法的有效性.
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| 关 键 词： | 分数阶傅立叶变换 解线调 线性调频信号 检测 参数估计 |
| 收稿时间： | 2006-11 |
| 修稿时间： | 2006年11月1日 |
Fast Detection and Parameter Estimation Method for Multi-component LFM Signal |
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| Zhu Jun,Chen Bing,Tang Bin.Fast Detection and Parameter Estimation Method for Multi-component LFM Signal[J].Journal of Electronic Measurement and Instrument,2008,22(1):25-29. |
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| Authors: | Zhu Jun Chen Bing Tang Bin |
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| Affiliation: | Zhu Jun Chen Bing Tang Bin(College of Electronic Engineering,UEST of China,Chengdu 610054 China) |
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| Abstract: | The paper focuses on detection and parameter estimation of multi-component LFM signals in the presence of noise.Based on the two approaches,including time delay correlation dechirp method and FrFT scan method, which are discussed in detail,a novel method is presented,which simplifies the LFM signal detection to one-dimension searching in limited range.The proposed method can decrease the computational burden and separate strong and weak simultaneous signals efficiently,and the estimation performance approac... |
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| Keywords: | FrFT dechirp LFM signal detection parameter estimation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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