| 摘要: |
| 空间目标的微动特征可以用来识别空间目标并估计目标参数。在空间进动锥体目标参数估计过程中，针对缺少目标结构参数等先验信息以及部分参数存在耦合问题，本文提出一种基于高分辨距离测量以实现进动参数和形状参数估计的新方法。该方法首先利用弹头目标的径向长度序列的极值信息估计出进动参数和形状参数的耦合结果，然后再根据径向长度序列构造一个辅助函数来实现进动参数和形状参数解耦。最后利用电磁仿真数据实验验证了该方法的有效性和适应性。 |
| 关键词: 锥体目标 参数估计 进动 径向长度序列 高分辨距离像 |
| DOI：DOI:10.3969/j.issn.1672-2337.2020.06.003 |
| 分类号:TN959 |
| 基金项目: |
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| Parameter Estimation of Space Precession Target Based on HRRPs |
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ZHA Lin， CHEN Daqing， WU Peng
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1. The 38th Research Institute of China Electronics Technology Group Corporation, Hefei 230088, China;2. Technical Department of Taiyuan Satellite Launch Center, Taiyuan 036301, China;3. Unit 32086 of PLA， Beijing 100000, China
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| Abstract: |
| The micro-motion feature can be used to recognize space targets and estimate target parameters. Aiming at the problem of parameters coupling and without prior knowledge of structure parameters, this paper proposes a new method to estimate precession and shape parameters based on the HRRPs. Firstly, the extreme value information of the radial length sequence is used to estimate the coupling result of the precession and shape parameters. Then, an auxiliary function is constructed according to the radial length sequence to decouple the precession and shape parameters. Finally, simulation results show that this method is simple, applicable and steady. |
| Key words: cone target parameter estimation precession radial length sequence high range resolution profile sequences (HRRP) |
