| 弹道目标中段平动补偿与微多普勒提取 |
| |
| 引用本文： | 杨有春,童宁宁,冯存前,贺泽维,贺思三.弹道目标中段平动补偿与微多普勒提取[J].宇航学报,2011(10). |
| |
| 作者姓名： | 杨有春 童宁宁 冯存前 贺泽维 贺思三 |
| |
| 作者单位： | 空军工程大学导弹学院; |
| |
| 基金项目： | 陕西省然科学基金(2010JQ8007) |
| |
| 摘 要： | 弹道目标高速平动会使微多普勒产生平移、倾斜和折叠,必须进行补偿处理。针对弹道目标中段平动补偿问题,本文提出了一种基于多普勒极值点信息的平动参数提取和平动补偿方法。通过将平动近似为多项式描述,将微动等效为锥旋运动,推导了瞬时多普勒极值点与多项式参数和微动参数的关系。在此基础上,利用最小二乘参数辨识方法估计了平动参数,实现了平动补偿和微多普勒的高精度实时提取。仿真实验验证了本文算法的有效性。
|
| 关 键 词： | 弹道目标 微多普勒 平动补偿 时频分析 最小二乘参数辨识 |
Translation Compensation and Micro-Doppler Extraction of Ballistic Target in Midcourse |
| |
| YANG You-chun,TONG Ning-ning,FENG Cun-qian,HE Ze-wei,HE Si-san.Translation Compensation and Micro-Doppler Extraction of Ballistic Target in Midcourse[J].Journal of Astronautics,2011(10). |
| |
| Authors: | YANG You-chun TONG Ning-ning FENG Cun-qian HE Ze-wei HE Si-san |
| |
| Institution: | YANG You-chun,TONG Ning-ning,FENG Cun-qian,HE Ze-wei,HE Si-san(The Missile Institute of Air Force Engineering University,Sanyuan 713800,China) |
| |
| Abstract: | The high velocity translation of ballistic targets will subject Micro-Doppler to translation,slope and fold.To compensate the translation of ballistic targets,a method based on Doppler extremum is proposed.Mathematics of Doppler extremum is derived on the basis that translation is approximated to a polynomial motion and the micro-motion is equivalent to a coning motion.Translation is compensated and micro-Doppler is extracted according to the parameters estimated by LS parameter identification method.Simula... |
| |
| Keywords: | Ballistic target Micro-Doppler Translation compensation Time-frequency analysis LS parameter identification |
| 本文献已被 CNKI 等数据库收录！ |
|
