| 利用单基准站改正信息和电离层参数估计的单频PPP算法 |
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| 引用本文： | 涂锐,黄观文,张勤,王利.利用单基准站改正信息和电离层参数估计的单频PPP算法[J].武汉大学学报(信息科学版),2012,37(2):170-173,182. |
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| 作者姓名： | 涂锐 黄观文 张勤 王利 |
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| 作者单位： | 长安大学地质工程与测绘学院,西安市雁塔路126号,710054 |
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| 基金项目： | 国家自然科学基金资助项目，国家863计划资助项目 |
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| 摘 要： | 利用单个基准站提供的改正信息对流动站的单频观测值数据进行改正,同时引入电离层参数进行实时电离层延迟估计,进行单频精密单点定位（PPP）计算。相比传统的单频PPP方法,本文方法对单频PPP的收敛速度和定位精度都有很大的提高,定位精度优于2cm,且受基准站距离的影响较小。
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| 关 键 词： | 单频精密单点定位 电离层参数估计 基准站 流动站 改正信息 |
PPP Algorithm of Single Frequency Based on Corrections of Single-base Station and Ionospheric Parameters Estimation |
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| TU Rui,HUANG Guanwen,ZHANG Qin,WANG Li.PPP Algorithm of Single Frequency Based on Corrections of Single-base Station and Ionospheric Parameters Estimation[J].Geomatics and Information Science of Wuhan University,2012,37(2):170-173,182. |
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| Authors: | TU Rui HUANG Guanwen ZHANG Qin WANG Li |
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| Institution: | 1(1 College of Geology Engineering and Geomatics,Chang’an University,126 Yanta Road,Xi’an 710054,China) |
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| Abstract: | As the point positioning accuracy of single frequency low-cost GPS receivers is slightly low,we propose to use amendments provided by single base station to correct observed data of single frequency of mobile station.Meanwhile,ionospheric parameters are introduced to estimate ionospheric delay on time and do precise point positioning calculations of single frequency.By analyzing the numerical example with real data,the new method in this essay markedly improves the converging speed and positioning accuracy of single-PPP.The accuracy is better than 2 cm and less influenced by the distance between base stations. |
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| Keywords: | precise point positioning of single frequency ionospheric parameters estimation base station mobile station corrections |
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