一种UWB/GPS组合定位方式
Journal of Nanjing University of Science and Technology(2018)
Abstract
针对当前定位技术中,低成本民用全球定位系统(Global positioning system,GPS)精度不高而高精度定位技术成本较高的问题,提出了一种超宽带(Ultra wide band,UWB)/GPS组合定位方案.以UWB系统获取运动载体的平面坐标,利用民用GPS系统获得实时速度和方位角信息.基于卡尔曼滤波器设计了轨迹纠偏算法,使用平面坐标、速度和方位角信息作为观测向量进行滤波,在控制成本的同时提高了定位精度.分别进行了UWB定位实验和组合定位实验,表明UWB/GPS组合定位能够降低系统成本,同时满足精确定位的需要.
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Key words
ultra wide band positioning,global positioning system,combined positioning,Kalman filter
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