Estimation of micro-motion feature for large accelerated target

被引：1
|
作者：
Li Y. [1 ]
Zhang X. [2 ]
Li F. [1 ]
Chen D. [3 ]
Gao H. [1 ]
机构：
[1] Beijing Institute of Radio Measurement, Beijing
[2] PLA Representative office in No.23 Institute of the Second Academy of China Aerospace, Beijing
[3] Technology Department of Taiyuan Satellite Launch Center, Taiyuan
来源：
Li, Yanbing (xidianlyb@163.com) | 1600年 / Science Press卷 / 39期
基金：
中国国家自然科学基金;
关键词：
Ambiguity resolution; Flexible-motion target; Micro-Doppler; Motion compensation; Parameter estimation;
D O I：
10.11999/JEIT160261
中图分类号：
学科分类号：
摘要：
In a certain observation time duration, the instantaneous frequency of motion target with large acceleration is ambiguous. This case is usually met in flexible-motion target with high velocity. If target has micro-motion, it will cause micro-Doppler modulation which adds in the ambiguous Doppler frequency. In order to extract micro-motion feature of large acceleration target, a parameter estimation method is proposed. Through the ambiguity resolution of Doppler frequency and the estimation and compensation of bulk motion of target, micro-Doppler extraction is achieved. And then, micro-motion period is estimated. Analysis based on simulation and measured data show that the method is suit for micro-motion parameter estimation of large acceleration flexible-motion target. © 2017, Science Press. All right reserved.
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页码：82 / 87
页数：5
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