| 多自由度飞行目标动态建模及其散射特性分析 |
| |
| 引用本文： | 李建周,刘祥威,范超群,刘露,齐玉涛.多自由度飞行目标动态建模及其散射特性分析[J].系统工程与电子技术,2019,41(11):2401-2407. |
| |
| 作者姓名： | 李建周 刘祥威 范超群 刘露 齐玉涛 |
| |
| 作者单位： | 1. 西北工业大学电子信息学院, 陕西 西安 710129;
2. 中国飞行试验研究院航电所, 陕西 西安 710089 |
| |
| 摘 要： | 以实现飞行动目标的高效建模技术为目标,并结合仿真计算和微动特征分析的技术要求,给出飞行动目标及其微动电磁散射特征分析的系统方法,实现了多自由度飞行目标的运动建模,形成完整的飞行动目标高效建模技术。以直升机飞行为例展示动态建模效果,主旋翼和尾翼转动时,由直升机雷达回波信号时频分析得到的微多普勒结果与理论分析相吻合。
|
| 关 键 词： | 多自由度建模 飞行目标 散射特性 时频分析 微多普勒效应 |
Geometric modeling and scattering characteristics analysis of multi-degree-of-freedom flying targets |
| |
| LI Jianzhou,LIU Xiangwei,FAN Chaoqun,LIU Lu,QI Yutao.Geometric modeling and scattering characteristics analysis of multi-degree-of-freedom flying targets[J].System Engineering and Electronics,2019,41(11):2401-2407. |
| |
| Authors: | LI Jianzhou LIU Xiangwei FAN Chaoqun LIU Lu QI Yutao |
| |
| Institution: | 1. School of Electronic Information, Northwestern Polytechnical University, Xi’an 710129, China;;
2. Chinese Flight Test Establishment of the Avionics, Xi’an 710089, China; |
| |
| Abstract: | Aiming at the efficient modeling technology of flying action targets, combined with the technical requirements of simulation calculation and micro-motion feature analysis, the system method of flight action target and micro-motion electromagnetic scattering feature analysis is given. The motion modeling of multi-degree-of-freedom flying targets is realized, and a complete flying action target efficient modeling technology is formed. Taking the helicopter rotation as an example to demonstrate the dynamic modeling effect, the micro-Doppler results obtained by the time-frequency analysis of the helicopter radar echo signal are consistent with the theoretical analysis when the main rotor and the tail are rotated. |
| |
| Keywords: | multi-degree of freedom modeling flying target scattering characteristics time-frequency analysis micro-Doppler effect |
|
| 点击此处可从《系统工程与电子技术》浏览原始摘要信息 |
| 点击此处可从《系统工程与电子技术》下载免费的PDF全文 |
|
