【摘要】 考虑到干涉SAR卫星编队姿态偏航导引要求,提出了两种兼顾偏航导引的编队波束同步方法。第一种方法结合星地、星间位置关系并通过坐标变换,规划了使系统满足波束同步要求的卫星姿态。考虑到该方法建模抽象、求解繁琐等不足,又提出了基于欧拉旋转的波束同步方法。数值仿真结果表明,两种方法均可有效实现系统波束同步,且后者效果更优。更多还原

【Abstract】 Considering the demands of yaw steering for InSAR satellite formation,two beam synchronization strategies meeting the demands of yaw steering were put forward.In the first strategy,by combining the position relationship between satellite-ground,and satellite-satellite and through coordinate transformation,SAR satellite′s attitude satisfying the demands of beam synchronization was programmed.However,the first strategy has shortcomings such as it is abstract to set up the model and tedious to solve the problem.Then,the second strategy based on Euler rotation was presented.Mathematical simulation shows that the two strategies can both effectively realize the beam synchronization,while the latter one is better.更多还原