一种新的中长基线BDS三频模糊度快速解算方法

doi:10.13474/j.cnki.11-2246.2017.0113

测绘通报 ›› 2017, Vol. 0 ›› Issue (4): 25-29.doi: 10.13474/j.cnki.11-2246.2017.0113

一种新的中长基线BDS三频模糊度快速解算方法

王鹏旭^1,2, 吕志伟^1,2, 杨东森^1,2, 邓科^1,2, 杨光³

1. 信息工程大学, 河南郑州 450001;
2. 北斗导航应用技术河南省协同创新中心, 河南郑州 450001;
3. 华南师范大学, 广东广州 510000

收稿日期:2016-08-18 出版日期:2017-04-25 发布日期:2017-05-05
作者简介:王鹏旭(1991—),男,硕士,主要从事网络RTK与北斗三频基线解算相关方面研究.E-mail:752971292qq.com

A New Methodology of Medium and Long Range BeiDou Triple-frequency Rapid Ambiguity Resolution

WANG Pengxu^1,2, LÜ Zhiwei^1,2, YANG Dongsen^1,2, DENG Ke^1,2, YANG Guang³

1. University of Information Engineering, Zhengzhou 450001, China;
2. BeiDou Navigation Technology Collaborative Innovation Center of Henan, Zhengzhou 450001, China;
3. South China Normal University, Guangzhou 510000, China

Received:2016-08-18 Online:2017-04-25 Published:2017-05-05

摘要/Abstract

摘要： 虽然TCAR能够实现短基线三频模糊度单历元解算，但由于电离层延迟及观测噪声等的影响，中长基线三频模糊度快速解算仍然是导航定位的一大难点。本文提出了一种新的无几何无电离层三频模糊度解算方法。该方法通过对伪距观测值赋予不同的权重，辅助宽巷及窄巷消除电离层残差的影响，使宽巷及窄巷求解只受观测噪声的影响；然后通过多历元的平滑获取宽巷及窄巷模糊度值。通过实测BDS三频长基线数据表明，相比经典TCAR算法，该方法可大大改善中长基线模糊度的求解精度，经过数据平滑并验证基本可以实现中长基线模糊度的快速解算。

关键词: 三频组合, TCAR/CAR, 双差电离层延迟, 无几何无电离层

Abstract: Although TCAR can realize three short baseline frequency to achieve fuzzy degree of single epoch algorithm, due to the influence of ionospheric delay and observation noise, long baseline three frequency ambiguity fast calculating is still a big difficulty of navigation and positioning. This paper presents a new method without geometric ionosphere three frequency ambiguity calculating. The method based on pseudorange observation with different weights, auxiliary lane wide and narrow lanes can eliminate the influence of ionosphere residual, make wide lane and narrow lanes to solve only affected by the observation noise, and then through the epoch more smooth get wide lane and narrow lanes fuzzy degree of value. Through the measured frequency BDS three long baseline data shows that compared with the classical TCAR algorithm, this method can greatly improve the solving accuracy of long baseline ambiguity, data smoothing and verification can achieve fast calculating of long baseline ambiguity.

Key words: three frequency combination, TCAR/CAR, double difference ionospheric delay, no geometry and the ionosphere

中图分类号:

P228.4

王鹏旭, 吕志伟, 杨东森, 邓科, 杨光. 一种新的中长基线BDS三频模糊度快速解算方法[J]. 测绘通报, 2017, 0(4): 25-29.

WANG Pengxu, LÜ Zhiwei, YANG Dongsen, DENG Ke, YANG Guang. A New Methodology of Medium and Long Range BeiDou Triple-frequency Rapid Ambiguity Resolution[J]. 测绘通报, 2017, 0(4): 25-29.

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一种新的中长基线BDS三频模糊度快速解算方法

A New Methodology of Medium and Long Range BeiDou Triple-frequency Rapid Ambiguity Resolution

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