BDS网络RTK中距离参考站整周模糊度单历元解算方法

doi:10.11947/j.AGCS.2016.20140525

测绘学报 ›› 2016, Vol. 45 ›› Issue (1): 50-57.doi: 10.11947/j.AGCS.2016.20140525

BDS网络RTK中距离参考站整周模糊度单历元解算方法

祝会忠, 徐爱功, 高猛, 杨秋实

辽宁工程技术大学测绘与地理科学学院, 辽宁阜新 123000

收稿日期:2014-10-13 修回日期:2015-08-30 出版日期:2016-01-20 发布日期:2016-01-28
作者简介:祝会忠(1983—),男,博士,研究方向为高精度GNSS定位算法与应用。
基金资助:
国家自然科学基金(41504010;41474020);国家863计划(2014AA121501);辽宁省博士启动基金(20141141);航天飞行动力学技术重点实验室开放基金(2014afdl005)

The Algorithm of Single-epoch Integer Ambiguity Resolution between Middle-range BDS Network RTK Reference Stations

ZHU Huizhong, XU Aigong, GAO Meng, YANG Qiushi

School of Geomatics, Liaoning Technical University, Fuxin 123000, China

Received:2014-10-13 Revised:2015-08-30 Online:2016-01-20 Published:2016-01-28
Supported by:
The National Natural Science Foundation of China (Nos.41504010;41474020);The National High-tech Research and Development Program of China (863 Program) (No.2014AA121501);The Program for Liaoning Doctoral Foundation (No.20141141);The Open Research Foundation of Science and Technology on Aerospace Flight Dynamics Laboratory(No. 2014afdl005)

摘要/Abstract

摘要： 提出了一种BDS网络RTK中距离(50～100 km)参考站间的双频载波相位整周模糊度单历元解算方法。该方法首先利用B1、B2载波相位整周模糊度间的线性关系选取B1、B2载波相位整周模糊度备选值。利用双频载波相位整周模糊度备选值计算双差电离层延迟误差,根据参考站各卫星电离层延迟误差间的空间关系,使用双差电离层延迟误差构建双差电离层延迟误差的线性计算模型。通过双差电离层延迟误差线性计算模型的建立搜索和确定B1、B2载波相位的整周模糊度。经CORS网实测数据试验算例的验证,该方法只需一个历元的观测数据即可确定参考站间双差B1、B2载波相位整周模糊度,且不受周跳影响。

关键词: BDS, 网络RTK, 单历元, 整周模糊度, 电离层延迟误差

Abstract: The algorithm of double frequency carrier phase integer ambiguity resolution between middle-range reference stations at single-epoch is proposed. The ambiguity candidates of B1 frequency and B2 frequency carrier phase are selected by linear relationship between carrier phase ambiguities of B1 frequency and B2 frequency carrier phase. The double difference ionosphere delay errors can be calculated by the ambiguity candidates of double frequency carrier phase. Then the linear calculation model of double difference ionosphere delay errors can be established by the double difference ionosphere delay errors according to the spatial relationship between the ionosphere delay errors of each satellites on reference stations. And the ambiguities of B1 frequency and B2 frequency carrier phase are searched and fixed in the establishing of the linear calculation model of double difference ionosphere delay errors. This algorithm is tested by the data of BDS CORS network. The results indicate that the double difference integer ambiguity between reference stations can be fixed at single-epoch, and this algorithm avoids the effect of cycle clips.

Key words: BDS, network RTK, single-epoch, integer ambiguity, ionosphere delay error

中图分类号:

P228

祝会忠, 徐爱功, 高猛, 杨秋实. BDS网络RTK中距离参考站整周模糊度单历元解算方法[J]. 测绘学报, 2016, 45(1): 50-57.

ZHU Huizhong, XU Aigong, GAO Meng, YANG Qiushi. The Algorithm of Single-epoch Integer Ambiguity Resolution between Middle-range BDS Network RTK Reference Stations[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(1): 50-57.

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BDS网络RTK中距离参考站整周模糊度单历元解算方法

The Algorithm of Single-epoch Integer Ambiguity Resolution between Middle-range BDS Network RTK Reference Stations

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