星载SAR干涉测量中伴随卫星编队构形保持与姿态控制的协同  

Coordination of Formation Maintenance and Attitude Control for Concomitant Satellite Formation in Spaceborne InSAR System

作　　者：孟云鹤[1] 李连军[1] 戴金海[1] 

机构地区：[1]国防科技大学航天与材料工程学院,长沙410073

出　　处：《系统仿真学报》2006年第9期2604-2608,共5页Journal of System Simulation

基　　金：卫星网构形快速调整与调度技术(514200107KG01)

摘　　要：研究星载SAR干涉测量中伴随卫星编队构形保持与姿态控制的协同问题。首先,简介主SAR卫星与伴随卫星编队所构成干涉测量系统的工作原理,当主SAR卫星施加偏航导引补偿多普勒频移时,为实现波束指向同步,伴随编队需进行构形与姿态的协同控制。给出协同控制框架结构图,通过设置轨道协同规划器与姿态协同规划器明确了解决方案;进而从构形规划、姿态规划、构形与姿态协同控制三方面具体地阐述伴随编队的协同控制技术。最后对构形保持、姿态规划和姿态控制进行数值仿真,结果表明伴随编队的协同控制满足波束指向同步要求,所提出的协同控制方案具有可行性。The coordination problem of formation maintenance and attitude control of concomitant satellite formation in spaceborne InSAR system was studied. First, the principle of InSAR system was introduced. When SAR satellite compensates Doppler Shift with yaw steering, for beam pointing synchronization, formation maintenance and attitude control of concomitant satellite formation should be coordinated. The coordination architecture with an orbit coordinator and attitude coordinator was proposed, which illustrated the approach to the coordination problem. Then, formation planning methods, attitude planning methods and laws of coordination control were concretely studied. Last, numerical simulations indicate the architecture of coordination control is feasible.

关 键 词：卫星编队飞行 构形保持 姿态控制 SAR干涉测量 波束指向同步 偏航导引 协同控制律 

分 类 号：V448[航空宇航科学与技术—飞行器设计]