智能手机GPS单点测速精度分析  

Accuracy Precision Analysis of GPS Absolute Velocity Determination with Smart Phone

作　　者：侯晓伟 姜英明 HOU Xiaowei;JIANG Yingming

机构地区：[1]千寻位置网络有限公司,上海200000 [2]山东农业工程学院,济南250100

出　　处：《现代导航》2021年第3期184-187,共4页Modern Navigation

摘　　要：本文对智能手机利用GPS测速的原理进行了说明,同时设计了静态数据模拟动态测速实验和低动态测速实验两种实验场景对智能手机的测速精度进行评价。实验结果表明,利用多普勒测速原理,智能手机静态数据模拟动态测速的精度可以达到dm/s。在低动态测试实验中,智能手机的测速结果与组合导航设备测速互差符合情况在dm/s水平,且和载体的运动加速度有一定的相关性。In the paper,the GPS speed measurement principle of smart phones is explained,and two experimental scenarios are designed to evaluate the speed measurement accuracy of smart phones,namely the static data simulation dynamic speed measurement experiment and the low dynamic speed measurement experiment.The experimental results show that the accuracy of dynamic velocity can reach dm/s by using the Doppler measurement principle,in the low dynamic test experiment,the velocity results of the smart phone and the combined navigation device are in line with each other at the dm/s level,and there is a certain correlation with the acceleration of the carrier.

关 键 词：智能手机 GPS测速 多普勒测速 测速精度 

分 类 号：P228.4[天文地球—大地测量学与测量工程]