【摘 要】
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In the multi-constellation satellite navigation system,all the visible satellites are used for positioning,which will increase the computation amount of the
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In the multi-constellation satellite navigation system,all the visible satellites are used for positioning,which will increase the computation amount of the receiver and affect the real-time positioning.How to quickly and effectively select visible satellites for positioning is a research topic.For this problem,a satellite selection algorithm based on Particle Swarm Optimization(PSO)is proposed.In this method,the visible satellite is numbered,random grouping,and each group as a particle; the velocity-displacement model in the PSO keeps the particles gradually close to the minimum value of the GDOP.
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