| ??????????????????GPS?????????????????? |
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| 引用本文： | 应俊俊,刘根友.??????????????????GPS??????????????????[J].大地测量与地球动力学,2009,29(5):68-71. |
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| 作者姓名： | 应俊俊 刘根友 |
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| 作者单位： | 1. 中国科学院测量与地球物理研究所动力大地测量学垂直实验室,武汉,430077;中国科学院研究生院,北京,100049
2. 中国科学院测量与地球物理研究所动力大地测量学垂直实验室,武汉,430077 |
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| 摘 要： | ???y???????????????λ??????????????????????????λ??Kalman????????????????????3??????????????Ashtech GPS?????????????????????????н?????????????????????λ??Kalman???????????????????????????????mm/s?????????????λ??Kalman?????????????????????????÷????B??????С????????????????????????????????????????ú????????????????侲???????????????????2??10 -8 ms -2??
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| 关 键 词： | ???????????? GPS?????? ?????? B??????С??????? ???????? |
DETERMINATION OF VELOCITY AND VERTICAL ACCELERATION IN AIRBORNE GRAVIMETRY BY USING GPS |
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| Ying Junjun, Liu GenyouKey Laboratory of Dynamic Ceodeesy.DETERMINATION OF VELOCITY AND VERTICAL ACCELERATION IN AIRBORNE GRAVIMETRY BY USING GPS[J].Journal of Geodesy and Geodynamics,2009,29(5):68-71. |
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| Authors: | Ying Junjun Liu GenyouKey Laboratory of Dynamic Ceodeesy |
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| Affiliation: | Ying Junjun1,2) , Liu Genyou1)1)Key Laboratory of Dynamic Ceodeesy,Institute of Geodesy , Geophysics,Wuhan 4300772)Graduate University of the Chinese Academy of Sciences,Beijing 100049 |
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| Abstract: | Three methods for GPS differential velocity determination:the first one is the velocity determination of receiver original Doppler,the second is the velocity determination of Doppler derived from the carrier phase and the third derives from Kalman filter based on carrier phase are discussed.A comparison among those approaches is made on the static and dynamic data from Ashtech GPS dual-frequency receivers.The data processing results show that the accuracy of the last one is the best,which can reach the leve... |
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| Keywords: | airborne gravimetry GPS differential velocity determination Doppler B-spline least squares fitting vertical acceleration |
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