李江,
黄大荣,,
胡晓伟,
韩立珣
空军工程大学防空反导学院 西安 710051
基金项目:国家自然科学基金(61701526, 61701528)，陕西省自然科学基础研究计划项目(2019JQ-336)
详细信息
作者简介:冯存前：男，1975年生，教授，博士生导师，研究方向为目标探测与识别、雷达信号处理及雷达电子战系统
李江：男，1995年生，硕士生，研究方向为目标探测与识别
黄大荣：男，1986年生，讲师，研究方向为雷达系统总体、雷达成像及运动补偿
胡晓伟：男，1987年生，讲师，研究方向为目标探测与识别
韩立珣：男，1996年生，博士生，研究方向为目标探测与识别
通讯作者:黄大荣 rsphdr@163.com
中图分类号:TN957计量
文章访问数:421
HTML全文浏览量:110
PDF下载量:32
被引次数:0
出版历程
收稿日期:2020-01-17
修回日期:2020-09-29
网络出版日期:2020-11-17
刊出日期:2021-03-22
Estimation Method of Translational Parameters for Different Translational of Ballistic Targets in Midcourse
Cunqian FENG,Jiang LI,
Darong HUANG,,
Xiaowei HU,
Lixun HAN
Air and Missile Defense College, Air Force Engineering University, Xi’an 710051, China
Funds:The National Natural Science Foundation of China (61701526, 61701528), The Shaanxi Natural Science Basic Research Project (2019JQ-336)
摘要
摘要:弹道中段多目标具有不同的平动参数，以往针对单目标和同一平动参数的群目标的平动补偿方法不再适用。针对此问题，该文提出了基于高阶模糊函数、延迟共轭相乘及时频分布处理相结合的多目标平动参数和微动周期估计方法。首先，该方法利用高阶模糊函数估计出平动2阶加速度和微动周期；然后，通过对1次补偿后的回波进行延迟共轭相乘估计出平动1阶加速度；最后，利用2次补偿后目标回波时频图的差异，对时间轴进行加权累加估计出剩余平动速度。仿真结果验证了所提算法对于多目标不同平动参数估计的有效性。
关键词:微多普勒/
弹道目标/
平动补偿/
高阶模糊函数/
延迟共轭相乘
Abstract:Multi-ballistic targets have different translational parameters in midcouse. The former translational compensation methods for single target and group targets with the same translational parameters are no longer applicable. In order to solve this problem, a new method of multi-target translation parameters and micro-motion period estimation is proposed based on high-order ambiguity, delayed conjugate multiplication and time-frequency distribution processing. First, the second-order translational acceleration and micro-motion period are estimated by using the high-order ambiguity. Then, the first-order translational acceleration is estimated by the delayed conjugate multiplication of the echo after the first compensation. Finally, the residual translational velocity is estimated by the weighted accumulation of the time axis based on the difference of the time-frequency image of the echo after the second compensation. The simulation results show the effectiveness of the proposed algorithm for multi-target estimation of different translational parameters.
Key words:Micro-Doppler/
Ballistic targets/
Translation compensation/
High-order ambiguity/
Delayed conjugate multiplication
PDF全文下载地址:
https://jeit.ac.cn/article/exportPdf?id=62dce536-f4ed-4569-867d-b63a97c50781
