摘要
GPS因其高精度测量结果,现在广泛用于速度测量.但其计量校准和溯源问题仍是一项空白.本文主要探讨GPS单点测速的原理、观测方程,分析了其误差来源和各误差源对测速精度的影响.通过用3块GPS OEM板对同时汽车进行测速实验,得到3块OEM板的速度数据,对3块接收机的测速平均值,标准差,离散度进行比较分析.并初步提出了GPS测速的校准方法.
GPS because of its high-precision measurement results, is now widely used for speed measurement. However, calibration and traceability of its measurement problem is still a gap. This paper mainly talks about the principle and observation equation of GPS single-point velocity determination . An analysis of its error sources and the various error sources affect the accuracy of the speed. Through the vehicles speed test by using three GPS OEM boards at the same time,obtain three groups from GPS OEM boards. Analyze the average value, standard deviation and dispersionof the speed date and initially proposed the calibration method of GPS speed.
出处
《天津理工大学学报》
2010年第3期13-15,共3页
Journal of Tianjin University of Technology
基金
天津市科技支撑计划重点项目(092CGYSF00300)
关键词
GPS测速
误差分析
数据处理
GPS velocity determination
error analysis
data processing
