Abstract:Most magnetotelluric data processing methods make the Fourier transform of a segment record to get a power spectrum then to solve for tensor impedance element, After processed by narrow band complex filtering or narrow band recurrence filtering and Hilbert transformation, real signal is transformed into narrow band complex signal, whose instantaneous spectrum is then used to solve for tensor impedance element, The data processing result obtained by this method is almost the same as that obtained by conventional method. Furthermore, the processing time is nearly equal to that needed by conventional method because fast convolution is used to perform Hilbert transformation.
引用本文:
陈乐寿, 白改先. 处理大地电磁资料的瞬时谱方法[J]. 石油地球物理勘探, 1984, 19(6): 567-574.
Chen Leshou, Bai Gaixian. The instantaneous spectrum method for magnetotelluric data processing. OGP, 1984, 19(6): 567-574.