Micro-Motion Characteristics of Non-Ideal Scattering Centers of Midcourse Targets with Precession

YAO Hui-wei; WEI Xi-zhang; XU Shao-kun; MAO Jun-jie

doi:10.3969/j.issn.0372-2112.2012.09.022

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Micro-Motion Characteristics of Non-Ideal Scattering Centers of Midcourse Targets with Precession

更新时间：2025-07-16

- Micro-Motion Characteristics of Non-Ideal Scattering Centers of Midcourse Targets with Precession
- Acta Electronica Sinica Vol. 40, Issue 9, Pages: 1844-1851(2012)
- 作者机构：
  
  国防科技大学电子科学与工程学院空间电子信息技术研究所,湖南,长沙,410073
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China for Distinguished Young Schoolars (No.61025006)
- DOI：10.3969/j.issn.0372-2112.2012.09.022
  CLC： TN95
- Published：2012
- 稿件说明：
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YAO Hui-wei, WEI Xi-zhang, XU Shao-kun, et al. Micro-Motion Characteristics of Non-Ideal Scattering Centers of Midcourse Targets with Precession[J]. Acta Electronica Sinica, 2012, 40(9): 1844-1851.
DOI：

YAO Hui-wei, WEI Xi-zhang, XU Shao-kun, et al. Micro-Motion Characteristics of Non-Ideal Scattering Centers of Midcourse Targets with Precession[J]. Acta Electronica Sinica, 2012, 40(9): 1844-1851. DOI： 10.3969/j.issn.0372-2112.2012.09.022.

摘要

传统中段进动目标微动特性研究通常将目标散射中心视为理想散射中心

且用目标自身进动来等效散射中心的运动

据此所得结论具有一定局限性.本文揭示了中段目标自身进动与散射中心运动的异同

综合考虑了实际散射中心的非理想散射现象和遮挡效应

建立了基于非理想散射中心的中段进动目标回波模型

并利用仿真实验分析了不同进动参数对时频特性的影响

通过暗室进动实验证明了本文结果的正确性.

Abstract

Conventional studies on characteristics of micro-motion targets with precession in ballistic midcourse usually regard the scattering centers of targets as ideal scattering centers

while the motions of practical scattering centers are equivalent to the precession of targets

based on which the educed conclusions usually are of certain limitations.This paper reveals the differences between motions of the target and its equivalent scattering centers.By considering the non-ideal scattering phenomena of practical scattering centers as well as their shielding effects

a new radar echo model of midcourse targets with precession is established based on non-ideal scattering centers.The influence of precession parameuers upon the time-frequency characteristics is analyzed via a set of simulations

while the correctness of the results is validated by experiments in anechoic chamber.

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