面向安全距離約束濾波的車輛GNSS車載定位優(yōu)化

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中圖分類號：TH86 文獻標志碼：A 文章編號：1671-5276（2025）03-0254-04

Vehicle GNSS On-board Positioning Optimization for Safe Distance Constrained Filtering

CHEN Rongrong1，ZHANG Yuan1，XIN Baojuan1，WU Zhe 1 ，LI Feng2 （1.Scholof MechanicalandElectrical Enginering，Xi'an Jiaotong Engineering University，Xi'an7103o，China; 2.School of Mechanical Engineering，Xi'an Jiaotong University，Xi 'an 71Oo49，China）

Abstract：TheBeidouNavigationSateliteSystem（BDS）playsanimportantroleinthefieldofvehiclepositioning，directly afectingnationalsecurityand people'slives.Avehiclepositioning methodforvehicle GlobalNavigationSateliteSystem（GNS） basedonsafedistanceconstraintfilteringisdesignedfortheimprovementofvehiclepositioning informationprocesingability.On thebasisofthesafetydistanceconstraint，theBDSpositioningiscompletedaccordingtothedistanceparameterstoinferthe actualdistanceofthevehicle.Theresultsshow thatthefilter withsafetyspacing limitcanimprovetheaccuracyof targeposition control，andthehashfiltermethodhasbterrobustness，whichishelpfultobeteradapttothedyamicstateoftevehicle. Compared with Kalman filterand hashing filter methods，TC-HFalgorithmcanobtaintheminimumrangeof distanceresults， and the obtaineddistance deviation isonly4.16m.Itisinferrdthatthepositioning accuracyofthesystemcanbegreatly improved after setting the safe distance limit.

Keywords：vehicle positioning；safety distanceconstraint；filtering；Beidounavigationsateliesystem；positioningaccuracy

0 引言

為了更好地提高人貨運輸?shù)陌踩院陀行訹1-2]，歐美等發(fā)達國家引人了GPS等定位技術(shù)來實現(xiàn)車輛位置、速度等參數(shù)的實時檢測與數(shù)據(jù)傳輸，由此實現(xiàn)理想的安全保護，目前已取得較大研究進展[3-4]。（剩余5118字）