| 格网点电离层垂直改正误差分析及其改进算法研究 |
| |
| 引用本文： | 范媚君,周建华,王梦丽. 格网点电离层垂直改正误差分析及其改进算法研究[J]. 全球定位系统, 2011, 36(6): 41-44,49 |
| |
| 作者姓名： | 范媚君 周建华 王梦丽 |
| |
| 作者单位： | 1. 北京环球信息应用开发中心,北京100094／解放军信息工程大学测绘学院,河南郑州450002
2. 北京环球信息应用开发中心,北京,100094 |
| |
| 摘 要： | 格网点电离层垂直改正误差（GIVE）是对格网点电离层垂直误差的估计,该值如估计过小则会影响系统完好性,如估计过大则会影响系统可用性,一般以一定概率的置信上限表示。提出了一种格网点电离层垂直改正误差的改进算法,该算法在保证一定风险概率的条件下使得估值更加接近真实值,提高了系统的可用性。实测数据分析表明：该算法实用有效。
|
| 关 键 词： | 完好性 可用性 GIVE |
The Analysis of Grid Ionosphere Vertical Correction Error and its Improved Arithmetic Research |
| |
| FAN Mei-jun,,ZHOU Jian-hua,WANG Meng-li. The Analysis of Grid Ionosphere Vertical Correction Error and its Improved Arithmetic Research[J]. Gnss World of China, 2011, 36(6): 41-44,49 |
| |
| Authors: | FAN Mei-jun ZHOU Jian-hua WANG Meng-li |
| |
| Affiliation: | FAN Mei-jun1,2,ZHOU Jian-hua1,WANG Meng-li1(1.Beijing Global Information Center of Application and Exploitation,Beijing 100094,China,2.Institute of Surveying and Mapping,Information Engineering University,Zhengzhou Henan 450052,China) |
| |
| Abstract: | Grid ionosphere vertical correction error(GIVE) is the estimation of grid ionosphere vertical error.It will influence the system's integrity when the estimation is too big,otherwise it will influence the system's usability,commonly it expressed by the overbound on some probability.This paper presents a improved arithmetic of grid ionosphere vertical correction error.In the condition of assuring the risk probability this arithmetic make the estimation more approach the true value,and advance the system's usa... |
| |
| Keywords: | Integrity usability GIVE |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
