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Leonard, M. and Kennatt, B.L.N. (2008) Multicomponent Autoregressive Techniques for the Analysis of Seismograms. Physics of the Earth and Planetary Interiors, 113.

has been cited by the following article:

  • TITLE: Comparison of GPR Random Noise Attenuation Using Autoregressive-FX Method and Tunable Quality Factor Wavelet Transform TQWT with Soft and Hard Thresholding

    AUTHORS: Amin Ebrahimib Bardar, Behrooz Oskooi, Alireza Goudarzi

    KEYWORDS: GPR, Autoregressive-FX, Tunable Quality Factor Wavelet Transform TQWT

    JOURNAL NAME: Journal of Signal and Information Processing, Vol.10 No.1, December 29, 2018

    ABSTRACT: Ground Penetration Radar is a controlled source geophysical method which uses high frequency electromagnetic waves to study shallow layers. Resolution of this method depends on difference of electrical properties between target and surrounding electrical medium, target geometry and used bandwidth. The wavelet transform is used extensively in signal analysis and noise attenuation. In addition, wavelet domain allows local precise descriptions of signal behavior. The Fourier coefficient represents a component for all time and therefore local events must be described by the phase characteristic which can be abolished or strengthened over a large period of time. Finally basis of Auto Regression (AR) is the fitting of an appropriate model on data, which in practice results in more information from data process. Estimation of the parameters of the regression model (AR) is very important. In order to obtain a higher-resolution spectral estimation than other models, recursive operator is a suitable tool. Generally, it is much easier to work with an Auto Regression model. Results shows that the TQWT in soft thresholding mode can attenuate random noise far better than TQWT in hard thresholding mode and Autoregressive-FX method.