大地测量与地球动力学2013，Vol.33Issue(1)：81-85,5.
DOP值进行GNSS相对定位预报的适用性研究
ANALYSIS OF AVAILABILITY OF DOP TO FORECAST GNSS RELATIVE POSITIONING
摘要
Abstract
On the basis of principles of GNSS pseudorange single point positioning and relative positioning, the formulas of absolute positioning factor of precision DOP and relative positioning factor of precision RDOP were deduced. This paper also analyzes the relation between two factor of positioning and their variation law and give the applicability scope for using DOP to forecast the GNSS relative positioning. The result indicates that DOP and RDOP have similar variation trend, but not agreed in some part. With the increasing of the number of the observed non-common-view satellites and the asymmetry of geometric strength of satellite, the deviation of using DOP to forecast relative positioning would increase correspondingly. In this case, we had better choose PDOP to conduct relative positioning prediction.关键词
GNSS/DOP/RDOP/相对定位/绝对定位Key words
Global Navigation Satellite System (GNSS)/Dilution of Precision (DOP)/Relative Dilution of Precision (RDOP) /relative positioning/point positioning分类
天文与地球科学引用本文复制引用
曹新运,王坚,刘超..DOP值进行GNSS相对定位预报的适用性研究[J].大地测量与地球动力学,2013,33(1):81-85,5.基金项目
国家自然科学基金青年基金(40904004) （40904004）
国家自然科学基金(41074010) （41074010）
江苏省自然科学基金(BK2009099) （BK2009099）
江苏省"青蓝工程" （）
江苏省高校优势学科建设工程项目 （）
