【摘要】 传统卫星导航定位中广泛采用四面体体积最大法来选择星座,该方法以牺牲定位精度提高星座选择速度。本文提出了基于雅可比法计算几何精度因子,以几何精度因子最小为依据选择星座的新算法。仿真结果表明,新算法既能满足实时性的定位要求,又可以不牺牲精度。更多还原

【Abstract】 In traditional satellite navigation positioning,calculating the maximum volume of four satellites projected tetrahedron to select satellites is widely employed.This method loses the positioning accuracy to improve the selection rate.This paper presents a new constellation selection algorithm based on the minimum geometric dilution of precision (GDOP) calculated by the Jacobian method.The simulation results indicate that the new algorithm satisfies the requirements of real time processing as well as does not lose the positioning accuracy.更多还原