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| 弹载毫米波SAR多普勒调频率估计方法 | |
| 引用本文： | 赵毅寰,王嵛琦,全英汇.弹载毫米波SAR多普勒调频率估计方法[J].航空兵器,2012(5):24-26. |
| 作者姓名： | 赵毅寰 王嵛琦 全英汇 |
| 作者单位： | 1. 中国空空导弹研究院,河南洛阳471009 航空制导武器航空科技重点实验室,河南洛阳471009 2. 中国空空导弹研究院,河南洛阳,471009 3. 西安电子科技大学雷达信号处理国家重点实验室,西安,710071 |
| 基金项目： | 基金项目:中航工业导弹院青年创新基金支持项目 |
| 摘 要： | 针对空空导弹合成孔径雷达(SAR)成像运动误差补偿困难的问题,提出了一种多普勒调频率估计方法。该方法以图像偏置(MD)法为基础,在弹载SAR burst工作模式下,选取合适的方位向分块序列大小和相关运算移动量,以适应弹载条件较高的脉冲重复频率(PRF)和复杂运动环境。试验证明,该方法能从雷达回波数据中准确估计多普勒调频率,提高成像质量。 |
| 关 键 词： | 多普勒调频率 合成孔径雷达 毫米波 估计 |
Doppler Rate Estimation for Millimetre-Wave Missile-Borne SAR |
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| ZHAO Yi-huan,WANG Yu-qi,QUAN Ying-hui.Doppler Rate Estimation for Millimetre-Wave Missile-Borne SAR[J].Aero Weaponry,2012(5):24-26. | |
| Authors: | ZHAO Yi-huan WANG Yu-qi QUAN Ying-hui |
| Affiliation: | 1. China Airborne Missile Academy, Luoyang 471009, China; 2. Aviation Key Laboratory of Science and Technology on Airborne Guided Weapons, Luoyang 471009, China; 3. National Laboratory of Radar Signal Processing, Xidian University, Xi＇an 710071, China) |
| Abstract: | A method of doppler rate estimation is proposed to deal with motion compensations for missile-borne SAR imaging. Working in burst SAR mode, Map Drift method is improved to satisfy the complicated condition of missile-borne, such as PRF up to ten kHz and maneuvering speed up to 3 Ma. Appropriate block size of azimuth data sequence and performance analysis, which is shown in this paper. correlative operation should be chosen according to Experimentations prove the validity of this method. |
| Keywords: | doppler rate synthetic aperture radar millimetre-wave estimation |
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