The performance of GPS Standard Positioning Service without selective availability

被引：0
|
作者：
Shih, TY [1 ]
Shih, HY
Yang, M
机构：
[1] Natl Chiao Tung Univ, Dept Civil Engn, Hsinchu, Taiwan
[2] Natl Cheng Kung Univ, Dept Surveying Engn, Tainan 70101, Taiwan
来源：
SURVEY REVIEW | 2001年 / 36卷 / 281期
关键词：
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The accuracy of the Standard Positioning Service of GPS has greatly improved after the termination of Selective Availability. Based on GPS observations from permanent GPS-fixed stations, the actual accuracy of GPS without SA is analyzed. For Station NCTU, the local geodetic coordinates are computed with the C/A code pseudo-ranges, and then transformed into a local grid system with Trans-Mercator projection. From 77984 single epoch observations collected in twenty-nine days, the 95% accuracy is found to be DeltaE : 17.6544m, DeltaN : 11.8236, DeltaH : 31.8018m. For five selected UNAVCO stations, the axes of error ellipsoid are computed.
引用
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页码：192 / 201
页数：10
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