Title
Use of multidimentional MEM spectral analysis in geophysics
Abstract
Auto and cross spectral analysis is the basic tool for geophysicist in order to study resonances of the magnetosphere using natural electromagnetic waves recorded in several places. The comparisons of these records must be made by autoregressive (AR) spectral estimators because the signal duration is short. For this application we show that the presentation of AR autospectrum by the position of the poles of the z transform is interesting. We make a direct comparison of the poles position for signal recorded at different places. Finally we present the influence of the choice of the order and discuss the particularities of the two dimensional autoregressive analysis.
Year
DOI
Venue
1982
10.1109/ICASSP.1982.1171826
Acoustics, Speech, and Signal Processing, IEEE International Conference ICASSP '82.
Keywords
Field
DocType
parametric statistics,resonance,signal to noise ratio,electromagnetic waves,spectral estimation,frequency,attenuation
Z-transform,Autoregressive model,Spectral density estimation,Computer science,Signal-to-noise ratio,Parametric statistics,Magnetosphere,Electromagnetic radiation,Estimator,Geophysics
Conference
Volume
Citations 
PageRank 
7
0
0.34
References 
Authors
1
4
Name
Order
Citations
PageRank
F. Glangeaud192.96
Mohamed Gharbi241.44
Nadine Martin311.38
Jean-Louis Lacoume46212.13