| 引用本文: | 向道朴,周东明,何建国.MLFMA在运动目标多普勒回波数值仿真中的应用.[J].国防科技大学学报,2010,32(2):114-118.[点击复制] |
| XIANG Daopu,ZHOU Dongming,HE Jianguo.The Application of MLFMA in Doppler Echo Simulation with Motion Body Target[J].Journal of National University of Defense Technology,2010,32(2):114-118[点击复制] |
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| MLFMA在运动目标多普勒回波数值仿真中的应用 |
| 向道朴, 周东明, 何建国 |
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(国防科技大学 电子科学与工程学院，湖南 长沙 410073)
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| 摘要: |
| 提出了一种应用准静态技术，结合快速多级子算法计算任意形状的运动目标多普勒信号的方法，对目标的几种典型的微动多普勒信号进行了仿真，并应用高分辨时频分析算法对仿真得到的微多普勒信号进行了分析，提取出了微多普勒瞬时频率，并与相应微动规律的点目标微多普勒瞬时频率进行对比。结果表明，二者具有相同的变化规律，从而证明本文提出的方法是有效的。 |
| 关键词: 准静态 快速多级子 微动 时频分析 |
| DOI： |
| 投稿日期：2009-09-03 |
| 基金项目: |
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| The Application of MLFMA in Doppler Echo Simulation with Motion Body Target |
| XIANG Daopu, ZHOU Dongming, HE Jianguo |
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(College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| A method based on quasi-static and Multi-level Fast Multi-pole Algorithm (MLFMA) is introduced to compute the micro-Doppler echo by motion body targeting with arbitrary shape. The joint time frequency analysis algorithm is used to calculate some typical motion's micro-Doppler echo. Furthermore, efforts were made to extract the instantaneous frequency and then compare it with the point target's instantaneous frequency in accord with the same micro-motion. The results indicate that they share the same trend and the current method is efficient. |
| Keywords: qusi-static Multi-level Fast Multi-pole Algorithm(MLFMA) micro-motion joint time frequency analysis |
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