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A New Algorithm for Underground Medium Parameters Inversion |
Yu Yan-nong①②; Fang Guang-you① |
①Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;②Graduate University, Chinese Academy of Sciences, Beijing 100039, China |
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Abstract When Ground Penetrating Radar is applied in actual projects, medium parameter (the permittivity is main) is a necessary data for users to position the depth of underground targets and the thickness of medium layers correctly. An inversion algorithm for underground medium parameter estimation based on MUSIC spectrum estimation is put forward in this paper. After estimating the time delay and amplitude of LFMCW GPR echo, the accurate medium parameter is worked out and then the right medium structure underground is gotten in succession. The simulating results show that the new algorithm improves much on the precision comparing with traditional electromagnetism inversion algorithms.
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Received: 16 October 2007
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