基于SPECAN技术的子孔径RD成像算法  

Sub-aperture RD Imaging Algorithm Based on SPECAN Technology

作　　者：周宝亮[1] 张顺生[1] 戴春杨[1] 孔令坤[1] 

机构地区：[1]电子科技大学电子科学技术研究院,四川成都610054

出　　处：《通信技术》2010年第8期250-252,共3页Communications Technology

摘　　要：由于弹载SAR平台运行速度快、机动性大、运动和姿态存在随机偏差、时实性成像要求高等特点,提出了基于SPECAN技术的子孔径RD成像算法。在距离向,采用匹配滤波技术实现距离向高分辨。在方位向,采用子孔径处理的SPECAN算法。通过仿真结果可以验证,基于SPECAN技术的子孔径RD成像算法有效的减少了数据处理量,降低对弹体存储空间的要求,很好地满足了实时成像要求。For high speed, big flexibility, motion attitude jitter and real-time imaging of the missile-borne SAR, a sub-aperture RD imaging method based on SPECAN is proposed. The high resolution in range direction is realized by means of match filter technology, while in azimuth direction, the sub-aperture algorithm based on SPECAN is adopted. The simulation results indicate that the sub-aperture RD imaging algorithm based on SPECAN could effectively reduce the quantity of data processing, lower the demand of missile storage space, thus fairly satisfying real-time imaging requirement and improving strike shot precision of the missile.

关 键 词：合成孔径雷达 弹载SAR 实时成像 子孔径 频谱分析 

分 类 号：TN95[电子电信—信号与信息处理]