%0 Journal Article
%T The Application of Transformation Relationship between Quaternion and Attitudes to SAR Motion Compensation<br>基于四元数的姿态变换关系在SAR运动补偿中的应用
%A Guo Chun-mei
%A Wang Yan-fei
%A <br>郭春梅
%A 王岩飞
%J 电子与信息学报
%D 2008
%I 
%X Since factors such as turbulence and pilot error make it impossible for an aircraft to flight along the nominal straight flight path, SAR motion compensation technology is crucial to acquiring high quality image. When the aircraft changes in the roll, pitch or heading, it is necessary to track the real time attitudes to stabilize the antenna pointing. While the strapdown inertial navigation system can fulfill the requirement. The instant attitude updating is one of the main tasks of attitude measurement for strapdown system. Consideration of the real time ability and stable performance, a new derivation method of the transformation equations between quaternion and attitudes is proposed. The influence of angle motion in airplane on SAR imaging is analyzed based on the derived equations. The method given in the paper can highly reduce the operation of triangle function and improve the efficiency of the system.
%K SAR
%K Strapdown inertial navigation
%K Angle motion error
%K Quaternion
%K Direction cosine matrix
%K Motion compensation<br>SAR
%K 捷联惯性导航
%K 角运动误差
%K 四元数
%K 方向余弦矩阵
%K 运动补偿
%K 四元数
%K 姿态解算
%K 变换关系
%K 运动补偿
%K 应用
%K Motion
%K Compensation
%K Attitudes
%K Quaternion
%K Relationship
%K Transformation
%K 系统实时性
%K 增强
%K 运算效率
%K 三角函数
%K 影响
%K 成像
%K 角运动误差
%K 载机
%K 分析
%K 方法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=ED15E91D92EE971F31EC520F366ACAF8&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=E158A972A605785F&sid=9124D83E61CF1CD0&eid=E23857687CD2EE51&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=12