一种基于轨道检测高动态GNSS定位精度的方法  

A Method of Detecting Positioning Precision for High Dynamic GNSS Based on Railway

作　　者：陈日高[1] 王国举[1] 钱闯[2] 张锦军[1] 洪泽[1] 

机构地区：[1]92493部队,辽宁葫芦岛125000 [2]武汉大学GNSS研究中心,湖北武汉430079

出　　处：《海洋测绘》2016年第5期54-57,共4页Hydrographic Surveying and Charting

摘　　要：基于高速高精度轨道平台,采用成熟非卫星定位测量手段作为其真值,提出了一种检测高精度、高动态GNSS定位测量结果的技术方法。重点研究了高速轨道平台基准的建立,坐标基准、时间基准统一等问题。通过对GNSS数据进行分析,采用两种不同解算软件对定位结果进行验证,为高精度、高动态GNSS设备的使用提供了依据。试验结果表明,多路径效应与速度变化相关性不强,周跳、信噪比受加速度的影响较大,与速度大小相关性较小。This article is based on high speed and high precision track platform,using the mature non-satellite positioning measurements as its true value.This article proposes a method of precision detection for high dynamic GNSS positioning measurement technique,and mainly studies how to establish the benchmark of high - speed track platform,its coordinate benchmark,time benchmark unification,and a series of problems,such as using two different calculating software for verifying the result of the positioning through the analysis of GNSS data.And it provides evidence for the use of high accuracy,high dynamic GNSS equipment.And the experiment shows the realization of the effectiveness to control high dymanic GNSS positioning accuracy of measurement by high dynamic carrier carrying GNSS equipment.And the test data shows that the correlation between the multipath and velocity change is not strong. The cycle slip and the signal to noise ratio are greatly influenced by the acceleration,and have less correlation with the velocity.

关 键 词：GNSS高动态测量 精度检测 轨道车 轨道 数据质量 

分 类 号：P228[天文地球—大地测量学与测量工程]