| 基于双频P码的GPS伪距单点定位研究及精度分析 |
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| 引用本文： | 朱勇,方源敏,刘建忠.基于双频P码的GPS伪距单点定位研究及精度分析[J].海洋测绘,2008,28(4):15-18. |
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| 作者姓名： | 朱勇 方源敏 刘建忠 |
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| 作者单位： | 1. 昆明理工大学,国土资源工程学院,云南,昆明,650093
2. 秦皇岛市城市规划管理信息中心,河北,秦皇岛,066001 |
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| 摘 要： | 首先给出了GPS伪距单点定位的几种主要误差的改正模型：电离层延迟、对流层延迟、地球自转改正、相对论效应改正等，然后采用双频伪距改正电离层延迟影响并利用IGS精密星历，通过算例来分析双频P码伪距单点定位的精度。
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| 关 键 词： | 单点定位 电离层延迟 对流层延迟 精密星历 |
Research and Accuracy Analysing on GPS Pseudorange Point Positioning Based on Dual Frequency Precise Code Observations |
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| ZHU Yong,FANG Yuan-min,LIU Jian-zhong.Research and Accuracy Analysing on GPS Pseudorange Point Positioning Based on Dual Frequency Precise Code Observations[J].Hydrographic Surveying and Charting,2008,28(4):15-18. |
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| Authors: | ZHU Yong FANG Yuan-min LIU Jian-zhong |
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| Affiliation: | ZHU Yong, FANG Yuan-min, LIU Jian-zhong( 1. Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming, Yunnan,650093 ; 2. City Planning Management Information Center of Qinhuangdao,Qinhuangdao,Hebei,066001) |
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| Abstract: | This paper introduces several kinds of error corrections model of GPS pseudorange point positionting:ionospheric delay,tropospheric delay,earch-rotating correction,relativity effect,etc.Then,using dual frequency pseudorange to correct ionospheric delay and applicate precise ephemeris IGS,the point positioning precision is verifide by an example. |
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| Keywords: | point positioning ionospheric delay tropospheric delay precise ephemeris |
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