Phase-frequency algorithms for resolving complex signals in wave seismic fieldimages

International Conference on Information Technologies in Business and Industry 2016

计算机科学;经济学;工业技术

Kochegurov, A.I.^1 ; Zlobina, E.V.^1 ; Geringer, V.^2

National Research Tomsk Polytechnic University, 30, Lenina Ave., Tomsk

634050, Russia^1

Baden-Wuerttemberg Cooperative State University, Faculty of Engineering, Friedrichshafen, Germany^2

关键词: Apriori;    Complex signal;    Dispersive media;    Incoherent noise;    Non equilibrium;    Phase frequency;    Seismic field;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/803/1/012072/pdf
DOI  :  10.1088/1742-6596/803/1/012072

来源: IOP

【 摘 要 】

The paper proposes phase-frequency algorithms with equilibrium and non-equilibrium processing based on the pre-developed phase-frequency tracking methods for resolving complex signals in wave seismic field images. It further shows that transition to equilibrium processing enables significant reduction of requirements to apriori information on the properties of useful signals, while non-equilibrium processing increases the resolution of the signals to a great extent. The conducted analytical argument and simulations testified that the algorithms can assure a sufficiently high extraction of signals in their interference zones and harder incoherent noise at propagation of complex signals in dispersive media. The simulation results are justified by real data obtained in processing of seismic wave fields.