基于类GPS技术的编队卫星相对参数测量研究

Measurement of Relative Parameters of Formation Fight Satellites Based on Quasi-GPS Technology

针对编队飞行小卫星间相对位置和相对姿态的测量,提出利用类GPS技术实现编队卫星间的自主测量,建立相应的测量模型来获得与相对位置和相对姿态相关的观测量。利用C-W方程和姿态运动学方程建立相应的状态方程,通过扩展卡尔曼滤波实现对编队卫星间相对参数的实时估计。MATLAB仿真结果表明,此方法能够获得很高的测量精度。

Quasi-GPS（Global Positioning System） technology is used to achieve autonomous measurement of formation flight satellites and to establish a measurement model to obtain observables of relative position and attitude.C-W equations and attitude kinematics equations are used to establish state equations for real-time estimation of the relative parameters of formation flight satellites with an extended Kalman filter.As shown by MATLAB simulation results,a high measurement accuracy is got.