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| 引用本文： | 王爱生,王飞.GPSԤ���������Ӳ�ľ��ȼ��Ա���λ�����Ӱ��[J].大地测量与地球动力学,2012,32(6):76-80. |
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| 作者姓名： | 王爱生 王飞 |
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| 作者单位： | 江苏师范大学测绘学院,徐州,221116 |
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| 基金项目： | 国家自然科学基金(41174032);江苏师范大学科研基金(09XLR18) |
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| 摘 要： | ????IGS???????????????1995??2010?????????????????????????????????λ?????????????????е??????????????????????????????SISRE??С??2 m??????????????(6??20)??10 -9 s???????λ????澫???1.0??7.0 m?????????2.5??27.0 m??
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| 关 键 词： | GPS ?????? ?????? ??? ?????λ???? |
ON GPS FORECASTING EPHEMERIS AND CLOCK CORRECTION ACCURACY AND EFFECTS ON STANDARD POINT POSITIONING |
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| Wang Aisheng and Wang Fei.ON GPS FORECASTING EPHEMERIS AND CLOCK CORRECTION ACCURACY AND EFFECTS ON STANDARD POINT POSITIONING[J].Journal of Geodesy and Geodynamics,2012,32(6):76-80. |
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| Authors: | Wang Aisheng and Wang Fei |
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| Institution: | Wang Aisheng and Wang Fei(School of Geodesy and Geomatic,Jiangsu Normal University,Xuzhou 221116) |
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| Abstract: | Using IGS data and products the forecasted ephemeris accuracy and the forecasted clock correction accuracy as well as the standard single point positioning accuracy during 1995 to 2010 is analyzed. These analyses show that all the accuracy trend to increase gradually, such as the forecast ephemeris accuracy (SISRE) is below 2 m, and the predicted clock correction accuracy is (6-20)×10 -9 s, the standard positioning accuracy is 1.0-7.0 m in the horizontal and 2.5-27.0 m in the vertical. |
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| Keywords: | GPS real-time serve broadcast ephemeris clock correction SPS(Standard Point Positioning Serve) |
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