第36卷第1期2023年1月传感技术学报CHINESEJOURNALOFSENSORSANDACTUATORSVol.36No.1Jan.2023项目来源:浙江省自然科学基金项目(LZJWY22E090001,LZ22F010004);国家自然科学基金项目(62271179,61871163)收稿日期:2022-01-11修改日期:2022-04-19ImageEKFtrackingbasedAPTMethodforUnderwaterLaserCommunication∗ZHANGMeiyan1,WUPeipeng2,WANGZhiqiang2,CAIWenyu2∗(1.CollegeofElectricalEngineering,ZhejiangUniversityofWaterResourcesandElectricPower,HangzhouZhejiang310018,China;2.SchoolofElectronicics&Information,HangzhouDianziUniversity,HangzhouZhejiang310018,China)Abstract:Aimingattheautomaticdirectionalignmentproblemoflaserbasedunderwatercommunication,anextendedKalmanfilter(EKF)trackingbasedAPTmethodusingunderwaterlaserspotimageisproposed,wherethefamousCannyoperatorandHoughcircletransformareusedtolocatetheunderwaterlaserspot.Accordingtotheprincipleofcameracalibration,pixelcoordinateconversionmod⁃elofAPTdirectionalignmentisestablished.Moreover,EKFisusedtofilterthetargetpositioningdata,andfinallyrelativelystableun⁃derwaterlasercommunicationalignmentresultsareobtai...