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GPS/BDS TIGHT COMBINATION CARRIER DIFFERENTIAL POSITIONING METHOD

机译：GPS / BDS紧组合载波差分定位方法

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摘要

Disclosed is a GPS/BDS tight combination carrier differential positioning method, comprising: first constructing, with a GPS as a reference system, a GPS intra-system double-difference ionosphere free combination model and a GPS/BDS inter-system double-difference ionosphere free combination model; then selecting a BDS reference satellite, re-parameterizing the ambiguity of the GPS/BDS inter-system double-difference ionosphere free combination and performing parameter de-correlation; estimating an ionosphere free combination carrier differential inter-system deviation in real time, and performing datum conversion on the ionosphere free combination carrier differential inter-system deviation at an essential moment to achieve the continuous estimability of the ionosphere free combination carrier differential inter-system deviation; and finally, forming an ionosphere free combination using a base carrier observation value with fixed ambiguity and performing tight combination positioning on the inter-system double-difference ionosphere free combination on the basis of the estimated ionosphere free carrier differential inter-system deviation.

机译：本发明公开了一种GPS / BDS紧密组合载波差分定位方法，包括：首先以GPS为参考系统构建GPS系统内双差分电离层自由组合模型和GPS / BDS系统间双差分电离层。自由组合模型;然后选择一个BDS参考卫星，重新参数化GPS / BDS系统间双差电离层自由组合的模糊性，并进行参数去相关;实时估算无电离层组合载流子系统间偏差，并在关键时刻对无电离层组合载流子系统间偏差进行基准转换，以实现对无电离层组合载流子系统间偏差的连续估计。 ;最后，使用具有不确定性的基载波观测值形成电离层自由组合，并基于估计的电离层自由载波间系统间偏差，对系统间双差电离层自由组合进行紧密的组合定位。

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公开/公告号WO2019174113A1

专利类型
公开/公告日2019-09-19

原文格式PDF
申请/专利权人 SOUTHEAST UNIVERSITY;
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申请/专利号WO2018CN85572
发明设计人 PAN SHUGUO;GAO WANG;WANG YANHENG;GAO CHENGFA;WANG QING;ZHANG RUICHENG;ZHANG JIAN;LIU GUOLIANG;
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申请日2018-05-04
分类号G01S19/07;
国家 WO
入库时间 2022-08-21 11:53:16

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