面向安全距离约束滤波的车辆GNSS车载定位优化

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中图分类号：TH86 文献标志码：A 文章编号：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

为了更好地提高人货运输的安全性和有效性[1-2]，欧美等发达国家引人了GPS等定位技术来实现车辆位置、速度等参数的实时检测与数据传输，由此实现理想的安全保护，目前已取得较大研究进展[3-4]。（剩余5118字）