摘要
进一步提高GPS定位精度是当前测量领域研究的重点课题,基线处理是GPS数据处理中的重要环节。影响基线解算质量的因素很多,其中起始点坐标偏差对基线解算结果有着不容忽视的影响。本文首先介绍了起算点对基线影响的数学模型,然后采用实测数据研究起算点精度对GPS基线解算质量的影响,得出了其影响规律。本文在介绍几种获取准确起算点坐标的常用方法的同时还提出了一种提高起算点精度的新方法。
In the current field measurement topics,further improving the positioning accuracy of GPS is key topics.The baseline processing is an important part in GPS data processing.Mang factors affect the quality of baseline solution,however,the influence of the baseline solver's results that caused by the starting point's coordinate deviation can not be ignored.This paper describes the mathematical model about the influence of the starting point on the baseline,then using measured data to study the influence of the starting point's precision on the quality of GPS baseline solution,we find the influence law finally.This paper also describes several common methods of obtaining starting point's accurate coordinate.At the same time,a new method improving the starting point's precision is introduced.
出处
《测绘科学》
CSCD
北大核心
2009年第S2期33-34,32,共3页
Science of Surveying and Mapping
关键词
起算点偏差
GPS
基线
影响
starting point's deviation
GPS
baseline
influence
