| 一种补偿加速度对目标回波影响的新方法 |
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| 引用本文： | 李伟龙,吴丹,万鹏飞.一种补偿加速度对目标回波影响的新方法[J].无线电工程,2012,42(9):15-18. |
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| 作者姓名： | 李伟龙 吴丹 万鹏飞 |
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| 作者单位： | 1. 空军工程大学导弹学院,陕西三原,713800
2. 西北大学生命科学学院,陕西西安,710069 |
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| 摘 要： | 以雷达发射线性调频信号为例,分析了存在加速度条件下运动目标回波信号经过匹配滤波器后的失配问题,同时利用LFM回波信号的循环统计特性,提出一种基于循环相关变换的加速度估计算法,能够有效估计目标加速度参数,解决加速度带来的失配损失问题。利用Matlab进行仿真实验,验证了算法的有效性。
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| 关 键 词： | 线性调频 匹配滤波 加速度补偿 循环相关 |
A Novel Method for Compensating the Influence of Acceleration on Target Echo |
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| LI Wei-long,WU Dan,WAN Peng-fei.A Novel Method for Compensating the Influence of Acceleration on Target Echo[J].Radio Engineering of China,2012,42(9):15-18. |
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| Authors: | LI Wei-long WU Dan WAN Peng-fei |
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| Affiliation: | 1. The Missile Institute, PLA Air Force Engineering University, Sanyuan Shaanxi 713800, China; 2. College of Life Science, Northwest University, Xi＇an Shaanxi 710069, China) |
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| Abstract: | As an example of linear frequency modulation signal, this paper analyzes the mismatch problem of target echo signal af- ter passing through matched filter under the presence of acceleration. With the cyclic statistical characteristic of LFM signal,an algo- rithm of acceleration estimation based on cyclic correlation transform is proposed. This method can effectively estimate the parameter of acceleration and solve the problem of the mismatched loss caused by acceleration. Finally,the result given by Matlab simulation shows that the method is efficient. |
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| Keywords: | Linear Frequency Modulation ( LFM ) matched filtering acceleration compensated cyclic correlation |
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