| 线性调频连续波雷达信号匹配滤波 |
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| 引用本文： | 郭磊,杨中海.线性调频连续波雷达信号匹配滤波[J].西南交通大学学报,2005,40(3):426-429. |
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| 作者姓名： | 郭磊 杨中海 |
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| 作者单位： | 电子科技大学物理电子学院,四川,成都,610054 |
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| 基金项目： | 本论文得到了电子科技大学青年科技基金项目（JX04023）的资助,在此谨表示诚挚的谢意! |
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| 摘 要： | 利用周期模糊函数分析了线性调频连续波信号的匹配滤波输出．用频域加权匹配处理可有效抑制距离耄瓣，提高多目标的分辨能力，但无法避免主瓣变宽，并使线性调频连续波信号的匹配滤波输出有信噪比损失．若采用汉宁加权，信噪比损失为3．52dB．
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| 关 键 词： | 线性调频雷达 距离分辨率 周期模糊函数 匹配滤波 |
| 文章编号： | 0258-2724（2005）03-0426-04 |
| 收稿时间： | 2004-07-09 |
| 修稿时间： | 2004-07-09 |
Matched Filtering of LFMCW Radar Signals |
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| GUO Lei,Yang Zhong-hai.Matched Filtering of LFMCW Radar Signals[J].Journal of Southwest Jiaotong University,2005,40(3):426-429. |
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| Authors: | GUO Lei Yang Zhong-hai |
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| Institution: | School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China |
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| Abstract: | The output of matched filters for linear frequency modulation continuous wave (LFMCW) signals was analyzed with period ambiguity function. Frequency weighting is effective to depress range side lobes and improve multi target resolution, but it widens main range lobes in the same time and leads to loss in signal to noise ratio (SNR) of the output of matched filters for LFMCW signals. The loss of SNR is 3.52 dB, by taking Hanning weight as an example. |
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| Keywords: | linear FM radar range resolution periodic ambiguity function matched filtering |
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