%0 Journal Article
%T A Practical Method for Spatial Synchronization in Spaceborne/Airborne Hybrid Bi-static SAR<br>一种实用化的星机双基地SAR空间同步方法
%A Zhou Peng
%A Pi Yi-ming
%A <br>周鹏
%A 皮亦鸣
%J 电子与信息学报
%D 2008
%I 
%X Since there is high difference between the velocities of platforms, the spatial synchronization of the antenna footprints is a big methodical and technological challenge for spaceborne/airborne hybrid bi-static SAR. Based on the method presented in the published literatures, a mathematical model for antenna steering is established and a set of concerned formulae is derived aiming to accommodate the ellipsoidal trajectory of satellites, the ellipsoidal shape of the earth and non-parallel trajectories between the platforms. The practicability of the proposed method is verified by the result of the simulation, which shows that it can achieve useful scene extension in azimuth with an adequate resolution in azimuth.
%K Spaceborne/airborne hybrid bi-static SAR
%K Spatial synchronization
%K Sliding spotlight mode
%K Beam steering<br>星机双基地SAR
%K 空间同步
%K 滑动聚束式
%K 波束指向控制
%K 星机
%K 双基地
%K 空间同步
%K 同步方法
%K Synchronization
%K Spatial
%K Method
%K Practical
%K Hybrid
%K 大小
%K 前提
%K 高分辨率
%K 结果验证
%K 仿真
%K 相关公式
%K 数学模型
%K 天线指向
%K 控制
%K 情况
%K 方向
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=42FD691024C3A2B1AB0A3C98FE420CA3&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=B31275AF3241DB2D&sid=2A0592C45C936A61&eid=29AE54A8F28A81D3&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=2&reference_num=5