The Algorithm Research of Extraction IP Parameters in CSAMT Based on Least Square
Upon the introduction of Cole-Cole model in layered media of controlled source a-coustic magnetotelluric(CSAMT)when describing induced polarization effect and application of the Cagniard apparent resistivity amplitude when constructing the objective function to ex-tract induced polarization(IP)pamameters from CSAMT data,this paper designed a least square based IP information extraction algorithm calculating its IP effect apparent resistivity to improve the detailed calculation process of partial derivative with varied model parameters.With the calculation method of apparent resistivity containing IP effect,based on least square method,the effectiveness of the algorithm is verified by experimental testing.The algorithm is proved useful to extract IP parameters from over two-dimensional medium and other electri-cal sounding data.
万方数据
维普
