基于长距离参考站网的GPS/BDS高精度实时动态定位算法研究

项目名称： 基于长距离参考站网的GPS/BDS高精度实时动态定位算法研究

项目编号： No.41504010

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 天文学、地球科学

项目作者： 祝会忠

作者单位： 辽宁工程技术大学

项目金额： 21万元

中文摘要： 利用区域参考站网可消除或削弱卫星定位的观测误差影响，提高实时动态定位的精度。本项目研究基于长距离参考站网（参考站间距100-200km）的GPS/BDS高精度实时动态定位算法。研究长距离参考站网GPS/BDS双差整周模糊度的实时单历元解算，重点突破长距离参考站网BDS双差整周模糊度的实时单历元解算问题；实现参考站网双差整周模糊度到非差模糊度的实时单历元快速计算；建立长距离参考站网覆盖区域内的高精度非差误差改正模型，进行用户GPS/BDS非差观测误差的高精度改正；利用电离层延迟误差的约束关系，进行用户GPS/BDS单系统、双系统整周模糊度的实时动态解算，并完成双系统的基准统一，实现GPS/BDS星间混频差分模糊度的解算。项目研究的算法能够利用长距离参考站网实现GPS/BDS单系统、双系统融合的高精度实时动态定位，促进BDS高精度定位技术的发展，具有重要的科学意义和研究价值。

中文关键词： GPS/BDS；长距离参考站网；非差误差改正模型；整周模糊度；高精度实时动态定位

英文摘要： The influence of observation errors in satellite positioning can be removed by the regional reference station network, and then the precision of real-time dynamic positioning is advanced. The algorithm of GPS/BDS real-time dynamic high-precision positioning using long range reference station network in which the ranges between stations are from 100km to 200km is researched in this project. The real-time resolution of GPS/BDS double difference integer ambiguities in long range reference station network at single epoch is researched, and the problem of BDS.double difference integer ambiguities real-time resolution in long range reference station network at single epoch is settled emphatically. The real-time rapidly calculating un-difference ambiguities by double difference integer ambiguities at single epoch of the reference station network is realized. The high-precision regional correction model of un-difference errors in the long range reference station network is established, and the un-differnce observation errors of GPS/BDS on users can be removed accurately. The real-time integer ambiguity resolution of single system or double systems of GPS/BDS can be achieved by constraint relations of the ionosphere delay error, and the unifying datum of double systems is accomplished. Then the GPS/BDS amgiguity resolution of difference between satellites with different frequencies is finished. The GPS/BDS real-time dynamic high-precision positioning of single system or double systems using long range reference station network can be realized in this project, and the development of high-precision positioning of BDS is promoted, which both have important scientific significances and research values.

英文关键词： GPS/BDS;Long Range Reference Station Network;Correction Model of Un-difference Errors;Integer Ambiguity;Real-time Dynamic High-precision Positioning