| 超宽带探地雷达信号处理 |
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| 引用本文： | 李建勋,肖艳军. 超宽带探地雷达信号处理[J]. 上海交通大学学报, 2005, 39(9): 1514-1517,1521 |
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| 作者姓名： | 李建勋 肖艳军 |
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| 作者单位： | 上海交通大学,电子信息与电气工程学院,上海,200030;上海交通大学,电子信息与电气工程学院,上海,200030 |
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| 基金项目： | 上海市科技发展基金资助项目（025115029）. |
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| 摘 要： | 基于探地雷达信号传输机理，建立了超宽带探地雷达宽带回波模型，揭示了多谱分量对目标回波及宽相关处理方法的影响。利用时频分析提取回波信号的主频及带宽进行频域滤波，提高了信号的信噪比，符合匹配滤波的条件，通过构造匹配母波和匹配滤波进行精确检测，形成了工程化的滤波方法，实际数据验证了算法的有效性。
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| 关 键 词： | 雷达/超宽带探地雷达 信息处理 宽相关处理 匹配滤波 |
| 文章编号： | 1006-2467（2005）09-1514-04 |
| 收稿时间： | 2004-07-26 |
| 修稿时间： | 2004-07-26 |
Signal Processing for Ultra-Wideband Ground-Penetrating Radar |
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| LI Jian-xun,XIAO Yan-jun. Signal Processing for Ultra-Wideband Ground-Penetrating Radar[J]. Journal of Shanghai Jiaotong University, 2005, 39(9): 1514-1517,1521 |
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| Authors: | LI Jian-xun XIAO Yan-jun |
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| Affiliation: | School of Electronic, Information and Electrical Eng. , Shanghai Jiaotong Univ. , Shanghai 200030, China |
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| Abstract: | A practical wideband correlation processing was proposed for ultra-wideband ground-penetrating radar (UWB GPR).The signal model of UWB GPR was built based on the mechanism of signal transmission, which shows the effect from multi-frequency component to target wave and wideband correlation processing. Transient central frequency and transient frequency width are obtained based on time-frequency analysis. Frequency filtering can be used to satisfy the condition of matching filtering. Through building the matching original wave and matching filtering, the practical filtering is found. The experimental (results) indicate that it can be useful to improve the processing performance. |
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| Keywords: | radar/ultra-wideband ground-penetrating radar (UW-GPR) signal processing wideband (correlation) processing matching filtering |
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