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WOS: 000326093600014

FN Thomson Reuters Web of Knowledge
VR 1.0
PT J
AU Cai, JH
AF Cai, Jian-hua
TI Magnetotelluric Response Function Estimation Based on Hilbert-Huang
   Transform
SO PURE AND APPLIED GEOPHYSICS
LA English
DT Article
DE Magnetotelluric data; Hilbert-Huang transform; marginal spectrum;
   response function estimation
ID EMPIRICAL MODE DECOMPOSITION
AB Magnetotelluric (MT) data series are non-stationary random signals that do not meet the basic requirements of conventional methods based on the Fourier transform. To minimize the estimation bias errors brought about by the non-stationary characteristics of MT data, a new method, based on the Hilbert-Huang transform (HHT), is proposed for the first time for estimating the MT response functions from a time series of electromagnetic field variations. With the HHT method, the amplitude of data series are expressed as a function of frequency and time and then response functions are estimated statistically from the time-frequency spectrum. Mathematical model and calculation processes are introduced and some simulated data are analyzed to verify the correctness of the method. Finally, the measured MT data is facilitated by applying the HHT to assess the ability of HHT method to quantify meaningful geologic information.
C1 Hunan Univ Arts & Sci, Dept Phys & Elect, Changde 415000, Peoples R China.
RP Cai, JH (reprint author), Hunan Univ Arts & Sci, Dept Phys & Elect, Changde 415000, Peoples R China.
EM cjh1021cjh@163.com
FU State 863 Project of China [Project No: 2006AA06Z10]; Hunan Provincial
   Natural Science Foundation of China [Project No: 12JJ4034]; 11th
   Five-year Plan for Key Construction Academic Subject (Optics) of Hunan
   Province
FX The authors wish to acknowledge the assistance and support of all those
   who contributed to our effort to enhance and develop the described
   system, and to express their appreciation for the financial support
   provided by the State 863 Project of China (Project No: 2006AA06Z10) and
   by Hunan Provincial Natural Science Foundation of China (Project No:
   12JJ4034) and by the Fund of the 11th Five-year Plan for Key
   Construction Academic Subject (Optics) of Hunan Province.
NR 18
TC 0
Z9 0
PU SPRINGER BASEL AG
PI BASEL
PA PICASSOPLATZ 4, BASEL, 4052, SWITZERLAND
SN 0033-4553
J9 PURE APPL GEOPHYS
JI Pure Appl. Geophys.
PD NOV
PY 2013
VL 170
IS 11
BP 1899
EP 1911
DI 10.1007/s00024-012-0620-3
PG 13
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 240KB
UT WOS:000326093600014
ER

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