In the naval battlefields simulation,the simulation process can be effectively accelerated by filtering out interested simulation entities according to spatial geographic information.On the analysis of the characteristics of the naval battlefields simula-tion,this paper proposes a method for filtering entities of interested in the naval battlefields simulation based on Geohash.The algo-rithm combines the improved trie-tree with Geohash,and specifically describes the application in the process of detection simula-tion.Finally,the experimental analysis between the proposed algorithm and other traditional algorithms proves the effectiveness in filtering entities of interested.
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