中圖分類號：TN967.1
文獻(xiàn)標(biāo)識碼：A
DOI:10.19358/j.issn.2097-1788.2023.06.015
引用格式：李浩,，鄭睿.基于粒子群優(yōu)化的北斗多星定位方法［J］.網(wǎng)絡(luò)安全與數(shù)據(jù)治理,，2023，42（6）：90-96.

Beidou multi-star positioning method based on particle swarm optimization

Abstract： The Beidou navigation satellite system is a satellite system independently constructed and operated by China. Providing highprecision positioning services to global users is one of its important functions. In order to improve the positioning accuracy of the Beidou system,a kind of feasible method is pseudo range location algorithm. In this paper, a Beidou satellite positioning method based on particle swarm optimization is proposed. Firstly, redundant satellites with large atmospheric refraction errors and small contribution to positioning are selected, so as to obtain several available Beidou satellites. On this basis, the initial population and fitness function of particle swarm optimization are studied, and the optimal receiver position is obtained by particle swarm optimization algorithm. The experimental results show that this method can quickly search the optimal position. Compared with the receiver position calculated by the maximum tetrahedron method, the positioning accuracy can be improved by about 15 m.

Key words : Beidou satellite; location; particle swarm optimization; optimization