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Statistics and Analyses for 100 Examples in EM Tomography

Lin Lizhen; He Jianwen; Zhang Haiyuan; Tang Yuming(Beijing Computer Centere of MGMR. 100083)  
Statistical data for 100 examples in EM tomography in recent 12 years were presented. By these data, it was analysed that the relations between exploration accuracy and the pixel size, as well as the problems of the frequency range of detector, the folds in field measurements, the underdetermined system of equations in EM tomography. We come to the conclusions that in order to improve the feasibility of EM tomography, it is meeded to develop new type of detector which will have a broad band response, Larger transmitting power and smaller antennas than the oldone. Also, the further studies on new imaging metiods and reconstruction algorithms for underdetermined system of equations ore required. The authors point out that some of theoreticd models at present are not suitablle to the field observational data.
【CateGory Index】: P631.325
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