1. 空军工程大学电讯工程学院,陕西,西安,710077
2. 复旦大学波散射与遥感信息国家教育部重点实验室,上海,200433
3. 95813部队,福建,福州,350000
4. 空军工程大学电讯工程学院陕西西安,710077
5. 复旦大学波散射与遥感信息国家教育部重点实验室上海,200433
6. 95813部队福建福州,350000
纸质出版:2011
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罗迎, 张群, 朱仁飞, 等. 多载频MIMO雷达中目标旋转部件三维微动特征提取方法[J]. 电子学报, 2011,39(9):1975-1981.
LUO Ying, ZHANG Qun, ZHU Ren-fei, et al. Three-Dimensional Micro-Motion Feature Extraction of Target with Rotating Parts in Multi-Carrier MIMO Radar[J]. Acta Electronica Sinica, 2011, 39(9): 1975-1981.
雷达目标的微多普勒效应为目标精确识别提供了新的技术途径
近年来获得了广泛研究.将多输入多输出(MIMO)雷达技术引入雷达目标微多普勒效应研究
在分析多载频MIMO雷达中目标旋转部件微多普勒效应的基础上
提出了一种雷达目标三维微动特征提取方法.该方法通过在回波时频平面上消除目标主体运动产生的多普勒频移
构造相应的Hough变换方程提取时频平面上曲线骨架的参数
再利用MIMO雷达的多视角特性
构建多元非线性方程组求解旋转部件的三维运动参数
从而实现了目标三维微动特征的提取.仿真实验验证了算法的有效性
并对算法的鲁棒性进行了进一步的分析.
The micro-Doppler (m-D) effect
which provides a new approach for accurate auto radar target recognition
has attracted great research attention in recent years.In this paper
the multi-input multi-output (MIMO) techniques are introduced for the m-D feature extraction.Based on the analysis of m-D effect induced by radar target with rotating parts in multi-carrier MIMO radar
an algorithm for three-dimensional micro-motion feature extraction is proposed.In the algorithm
the Doppler frequency shift induced by the target body is eliminated from the time-frequency plane of echoes
and the parameters of the curve skelectons on the time-frequency plane are extracted by utilizing the Hough transform
then the three-dimensional micro-motion features can be obtained by solving nonlinear multivariable equation systems.Simulations validate the effectiveness of the algorithm
and the robustness of the algorithm is also analyzed.
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