应用编码发射机在轨测量星载SAR天线方向图  

Inflight Measurement of Antenna Pattern for Spaceborne SAR Using Encoding Transmitters

作　　者：王晓林[1] 洪峻[1] 

机构地区：[1]中国科学院电子学研究所,北京100080

出　　处：《中国科学院研究生院学报》2006年第2期186-191,共6页Journal of the Graduate School of the Chinese Academy of Sciences

摘　　要：对利用多个编码发射机在轨测量星载SAR接收天线二维方向图的技术进行了研究.结合SAR系统的特点,对测量原理做了简要介绍,确定了正交调制编码序列的选择,推导了信号生成、接收、多普勒补偿及相关处理的关键算法.计算机模拟测量结果验证了该方法的可行性.Inflight measurement of antenna pattern is a key technology of spacebome SAR calibration. This paper describes a new method of antenna reception pattern measurement for spacebome SAR using encoding transmitters. Considering the characters of the SAR system, the principle is described briefly. The orthogonal modulation code is chosen and the arithmetic of generating, receiving, decoupling and processing signals is derived. The results of computer simulation prove that this measurement method is feasible.

关 键 词：编码发射机 星载SAR 天线方向图 在轨测量 

分 类 号：TN957.51[电子电信—信号与信息处理]