Volume 33 Issue 7
Jul.  2008
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CAO Yueling, WANG Jiexian. Application of Spherical Cap Harmonic Analysis to Fit GPS Level Height[J]. Geomatics and Information Science of Wuhan University, 2008, 33(7): 740-743.
Citation: CAO Yueling, WANG Jiexian. Application of Spherical Cap Harmonic Analysis to Fit GPS Level Height[J]. Geomatics and Information Science of Wuhan University, 2008, 33(7): 740-743.
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Application of Spherical Cap Harmonic Analysis to Fit GPS Level Height

  • 1Department of Surveying and Geo-informatics,Tongji University,1239 Siping Road,Shanghai 200331,China;2Key Laboratory of Advanced Engineering Survey of SBSM,1239 Siping Road,Shanghai 200092,China

Funds: 国家自然科学基金资助项目(40674003)；上海市科学技术委员会资助项目(06DZ22101)
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  • Received Date: April 26, 2008
  • Revised Date: April 26, 2008
  • Published Date: July 04, 2008
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  • The detailed research on theoretical foundation of SCHA is given;and the model of applying SCHA to fit GPS level height is put forward,which is to achieve the transformation between GPS geodetic height and level height.A new model to adjust the SCHA model——ASHA model is discussed.It solves the problem in SCHA model,which is there is not a good method to compute the real rank of Legendre function quickly now.The test results show that both the inside and outside precisions can be controlled in centimeter rank.
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