| 基于外照射的无源相干雷达系统及其关键问题 |
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| 引用本文： | 王俊,张守宏,保铮.基于外照射的无源相干雷达系统及其关键问题[J].电波科学学报,2005,20(3):381-385. |
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| 作者姓名： | 王俊 张守宏 保铮 |
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| 作者单位： | 西安电子科技大学雷达信号处理国家重点实验室,陕西,西安,710071 |
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| 基金项目： | 国家自然科学基金，国家部委预研基金 |
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| 摘 要： | 通过建立实验系统并对基于调频广播照射的单站无源相干探测系统原理的研究,提出了基于通道均衡、杂波抑制和距离多普勒相干匹配滤波的信号处理方案;分析了直达波和多径杂波为整数迟延和分数迟延时的杂波抑制方法及性能,讨论了通道频率特性以及通道非线性对相消性能的影响.对实测数据的处理结果表明通过设置良好的接收方案和利用提出的处理方法,能有效地探测和跟踪远距离运动目标.
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| 关 键 词： | 外辐射源 直达波抑制 通道特性 目标检测 |
| 文章编号： | 1005-0388(2005)03-0381-06 |
| 修稿时间： | 2004年3月18日 |
Study on the external illuminator based passive coherent radar experimental system |
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| WANG Jun,ZHANG Shou-hong,BAO Zheng.Study on the external illuminator based passive coherent radar experimental system[J].Chinese Journal of Radio Science,2005,20(3):381-385. |
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| Authors: | WANG Jun ZHANG Shou-hong BAO Zheng |
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| Abstract: | Based on a passive coherent location experimental radar system by using external FM broadcast as transmitter, this paper provides an applicable signal processing scheme, which consist of channel equalization, clutter cancellation and coherent match filtering processing. Ways of cancellation for clutter when its arrival time being integer as well as fractional sampling interval are discussed, the influence of channel frequency properties and nonlinear distortions on system performance are presented, respectively. Real date processing result shows by a deliberate system designing and employing the presented scheme, favorable performance for such a system is achievable. |
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| Keywords: | external illuminator clutter rejection channel property target detection |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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