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《Chinese Journal of Geophysics》 2000-01
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AN IMPROVED RECONSTRUCTION ALGORITHM FOR COMPUTERIZED IONOSPHERIC TOMOGRAPHY

WU XIONG-BIN; XU JI-SHENG; MA SHU-YING(Department of Space Physics, Wuhan University, Wuhan 430072, China)  
An improved reconstruction algorithm of computerized ionospherictomography is proposed in this paper. In this algorithm, both differential DopplerPhase data and differential Doppler frequency data are exploited to solve the crucialproblems of correctly calculating integral phase constant and appropriately choosinginitial guess for iteration which prevalently exist in the study of computerizedionospheric tomography. The calculating of integral phase constant and the choosingof initial guess are integrated in the process of reconstruction. The algorithm avoidscalculating phase constant separately before reconstruction, offering a more reasonablemethod to choose initial guess as well. Both numerical simulation example andreconstructed results from observed data show that the new algorithm works reasonablyand effectively with ionospheric CT problems.
【Fund】: 国家自然科学基金!49584006;;高等学校博士学科点专项基金
【CateGory Index】: P352
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【References】
Chinese Journal Full-text Database 3 Hits
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Chinese Journal Full-text Database 1 Hits
1 Xu Jr-SHENG;MA SHU-YING; YANG QI-HAN; TIAN MAO ;HUO TAI-SHAN(Department of Space Physics,Wuhan University,Wuhan 430027)K.C.YEH(College of Engineering, Sun Yat-Sen University,Kaohsiung ,Taiwan)H.C.YEH(Institute of Space Science,Central University, Chung-Li;TOMOGRAPHIC DIAGNOSIS OF THE IONOSPHERIC EQUATORIAL ANOMALY IN THE REGION OF EAST-ASIA──EXPERIMENT AND EARLY RESULTS[J];Chinese Journal of Geophysics;1995-05
【Co-citations】
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1 LONG Shiguo,MA Tianlang (Institute of Xiangtan TianHong Electron, Xiangtan 411100, China);DB16 intellectual NDT instrument for large-size geotechnical engineering and its application[J];Progress In Geophysics;2003-03
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【Secondary References】
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1 HAN Bao-min1,3,XU Hou-ze2(1.School of Architecture and Engineering,Shandong University of Technology,Zibo 255049,China;2.Key Laboratory of Dynamical Geodesy,Institute of Geodesy and Geophysics,Chinese Academy of Sciences, Wuhan 430077,China;3.Xi'an Research Institute of S urveying & Mapping,Xi'an 710054,China);GPS-based reduced-dynamic orbit determination for gravity field revovery[J];Progress in Geophysics;2007-01
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