GPS用于编队星座的姿态与相对位置确定

利用载波相位差分GPS技术确定编队星座的姿态和相对位置时，由于卫星状态间的相互耦合和差分观测值的相关性，应该联合星内和星间的差分观测进行状态的整体解算，文中给出了利用星间差分观测值形成的空间网形束、联合星内和星间差分确定编队星座姿 态和相对位置方法，数学仿真结果表明该方法的有效性。

ATTITUDE AND RELATIVE POSITIONING ESTIMATION FOR FORMATION CONSTELLATION USING GPS

When determining attitude and relative position of formation constellation using carrier-phase differential GPS (CDGPS), the difference measurements of intra-satellite and inter-satellite must be combined to entirely resolve the states, because the states of the satellites are coupled and the difference measurements are correlative to each other. This paper presents a mathematical model of determining the attitudes and relative positions, which combining with intra-vehicle and inter-vehicle differential measurements, and using three-dimensional net constraint from inter-vehicle differential measurements. The mathematical simulation results show the feasibility of the method.