2023.02ELECTRONICSQUALITY基于双向A*算法的路径规划问题研究李云龙,梁波,薛新华,张平,管乐阳,魏广伟(中国电子科技集团公司第二十八研究所,江苏南京210000)摘要:针对我军野外无路网条件下机动作业问题,通过网格法将野外环境进行等效,利用路径规划算法规划最短路径。利用传统的A*算法进行路径规划时,由于算法只从单一方向进行探路,收敛速度较慢,尤其是针对区域面积较大、障碍物环境复杂时运算速度会显著地降低。因此,提出了一种经过改进的双向A*算法,其主要思路为利用起点、终点同时进行寻路,当两侧路径的可到达点出现交叉时即完成寻路。根据仿真结果,验证了双向A*算法能够完成最优路径搜索,相较于传统A*算法,能够有效地提高寻路效率,减少搜索时间。关键词:路径规划;A*算法;双向A*算法;仿真;最优路径中国分类号:TP301.6文献标识码:A文章编号:1003-0107(2023)02-0001-04doi:10.3969/j.issn.1003-0107.2023.02.001ResearchonPathPlanningBasedonBidirectionalA*AlgorithmLIYunlong,LIANGBo,XUEXinhua,ZHANGPing,GUANYueyang,WEIGuangwei(The28thResearchInstituteofChinaElectronicsTechnologyGroupCorporation,Nanjing210000,China)Abstract:Aimingattheproblemofmobileoperationofourarmyinthefieldwithoutroadnetwork,thefieldenviron-mentisequivalentbygridmethod,andtheshortestpathisplannedbypathplanningalgorithm.WhenthetraditionalA*algorithmisusedforpathplanning,theconvergencespeedisslowbecausethealgorithmonlyexploresthepathfromasingledirection,especiallywhentheareaislargeandtheobstacleenvironmentiscomplex,theoperationspeedwillbesignificantlyreduced.Therefore,animprovedbi-directionalA*algorithmispresented.Itsmainideaistousethestartingpointandtheendpointtofindthepathatthesametime.Whenthereachablepointsofthepathsonbothsidescross,thepathfindingiscompleted.Accordingtothesimulationresults,itisverifiedthatthebidirectionalA*algorithmcancompletetheoptimalpathsearch,whichcaneffectivelyimprovethepathfindingefficiencyandre-ducethesearchtimecomparedwiththetraditionalA*algorithm.Keywords:pathplanning;A*algorithm;bidirectionalA*algorithm;simulation;optimalpath收稿日期:2022-10-08修回日期:2022-12-07作者简介:李云龙(1...