Sidereal Filtering Based on Sphere Multipath Stacking and Its Application in PPP

WANG Yan; ZHANG Chuanding; HU Xiaogong; ZHU Lingfeng; FENG Wei; CHANG Zhiqiao

doi:10.13203/j.whugis20160454

Volume 43 Issue 10

Oct. 2018

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Geomatics and Information Science of Wuhan University > 2018 > 43(10): 1496-1503. > DOI: 10.13203/j.whugis20160454

WANG Yan, ZHANG Chuanding, HU Xiaogong, ZHU Lingfeng, FENG Wei, CHANG Zhiqiao. Sidereal Filtering Based on Sphere Multipath Stacking and Its Application in PPP[J]. Geomatics and Information Science of Wuhan University, 2018, 43(10): 1496-1503. DOI: 10.13203/j.whugis20160454

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Sidereal Filtering Based on Sphere Multipath Stacking and Its Application in PPP

1.
Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052, China
2.
Beijing Satellite Navigation Center, Beijing 100094, China
3.
Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China

Funds:

The National Natural Science Foundation of China 41374038

The National Natural Science Foundation of China 41204022

The National Natural Science Foundation of China 41274043

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Author Bio:
WANG Yan, PhD candidate, specializes in the theories and methods of measurement data processing. E-mail: wang1yan.hi@163.com
Corresponding author:
ZHANG Chuanding, PhD, professor. E-mail: 13607665382@163.com
Received Date: February 13, 2017
Published Date: October 04, 2018

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Abstract

Abstract

Sidereal filtering (SF) is applied to reducing the error of static station observation caused by multipath. However, SF based on observation domain has some problems when used for static precise point positioning (PPP). Hence, an adapted algorithm named sphere multipath stacking (SMPS) is proposed and applied to PPP. The process of SMPS algorithm and the statistical algorithm that choose the appropriate cell size are presented in this paper. The experiment result that utilizes the data from 10 IGS stations shows that SMPS algorithm can reduce the multipath error of GNSS carrier phase observation and the accuracy of 1-3 hours positioning result improves clearly. The positioning accuracy improvement ratios of E, N, U directions are 41.59%, 38.60%, and 36.96%, respectively.
- multipath error,
- sidereal filtering,
- sphere multipath stacking (SMPS),
- precise point positioning (PPP),
- post-fit residuals

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