Detection accuracy of the temporary state of complex signals using phase-frequency tracking methods with equilibrium and non-equilibrium processing

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

This report proposes the phase-frequency tracking methods of complex signals based on optimal and suboptimal processing ofPFCand group delay functions (FGZ). At the same time, the cases of correlated and uncorrelated samples of PFC and FGZ are analyzed herein. It is demonstrated that the correlation in the samples does not change the processing structure, but only the weight factors are changed. The phase-frequency algorithms with equilibrium and nonequilibrium processing are developed based on the proposed methods. It is shown that the transition to equilibrium processing enables a significant level down the requirements to a priori information about the properties of the useful signal, while nonequilibrium processing increases the resolution of the signals significantly. The conducted analytical argument and results of the simulation experiments on the produced simulated wave fields have testified that at propagation of the complex signals in dispersive media, these algorithms can assure rather high detection accuracy of the signal temporary state, even when the signal-to-noise ratio is close to 1. The results of the simulation experiments are justified by the real data obtained in processing the seismic wave fields.

Original languageEnglish
Title of host publicationSoft Computing in Computer and Information Science
EditorsAntoni Wiliński, Imed El Fray, Jerzy Pejas
PublisherSpringer Verlag
Pages27-36
Number of pages10
ISBN (Electronic)9783319151465
DOIs
Publication statusPublished - 2015
Event19th International Conference on Advanced Computer Systems, ACS 2014 - Miedzyzdroje, Poland
Duration: 22 Oct 201424 Oct 2014

Publication series

NameAdvances in Intelligent Systems and Computing
Volume342
ISSN (Print)2194-5357

Conference

Conference19th International Conference on Advanced Computer Systems, ACS 2014
CountryPoland
CityMiedzyzdroje
Period22.10.1424.10.14

Keywords

  • Equilibrium and Non-equilibrium processing
  • Phase-frequency characteristic
  • Time position signal

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science(all)

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