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| 宽带线性调频雷达信号多普勒效应分析与处理 | |
| 引用本文： | 文树梁,袁起,何佩坤,毛二可,秦忠宇.宽带线性调频雷达信号多普勒效应分析与处理[J].系统工程与电子技术,2005,27(4):573-577. |
| 作者姓名： | 文树梁 袁起 何佩坤 毛二可 秦忠宇 |
| 作者单位： | 1. 北京理工大学电子工程系,北京,100081;中国航天科工集团二院二十三所,北京,100854 2. 北京理工大学电子工程系,北京,100081 3. 中国航天科工集团二院二十三所,北京,100854 |
| 摘 要： | 宽带线性调频信号是地基宽带成像雷达的一种常用波形。先推导了目标运动时宽带线性调频信号Stretch处理的雷达回波数学模型,利用宽带模糊函数(WBAF)分析了目标运动对该信号的影响,得出了该信号形式的多普勒容限,同时也分析了目标加速度对目标距离像的影响,并提出了该信号的多普勒处理补偿的方法与不需要加速度补偿的条件。模拟实验表明,宽带线性调频信号的多普勒效应分析与补偿处理方法是有效的 |
| 关 键 词： | 宽带雷达 CHIRP信号 Stretch处理 多普勒效应 |
| 文章编号： | 1001-506X(2005)04-0573-05 |
| 修稿时间： | 2004年5月17日 |
Doppler effect analysis and processing for wideband linear frequency modulated radar signal |
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| WEN Shu-liang,YUAN Qi,HE Pei-kun,MAO Er-ke,QIN Zhong-yu.Doppler effect analysis and processing for wideband linear frequency modulated radar signal[J].System Engineering and Electronics,2005,27(4):573-577. | |
| Authors: | WEN Shu-liang YUAN Qi HE Pei-kun MAO Er-ke QIN Zhong-yu |
| Institution: | WEN Shu-liang~ |
| Abstract: | Wideband linear frequency modulated signal is a kind of waveform commonly used in ground-based wideband imaging radar. A mathematic model for wideband linear frequency modulated signal Stretch processing when target is moving is obtained, the effect of the target acceleration on target range profile is studied. the influence of target motion is analyzed by using wideband ambiguity function(WBAF), and Doppler tolerance is derived. The signal processing and compensation methods are proposed, and the conditions for compension without acceleration are also established. Simulation results demonstrate the Doppler effect analysis and the compensation methods for wideband linear frequency modulated signal processing are effective. |
| Keywords: | wideband radar CHIRP signal Stretch processing Doppler effect |
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