Recognition of the periodic reference signal superimposed with periodic interference

Authors

  • Віктор Васильович Авраменко Sumy State University Rimsky-Korsakov Street, 2, Sumy, 40007, Ukraine
  • Юрій Іванович Прохненко Sumy State University Rimsky-Korsakov Street, 2, Sumy, 40007, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2012.5686

Keywords:

Periodic signal recognition, disproportion functions, additive noise, periodic noise, speech command, signal fragment

Abstract

There are many publications devoted to the problem of recovery of reference signal superimposed on a random noise. In many practical cases, however, both the signal and the additive noise are periodic processes. Processing such a signal usually starts with filtering the noise. However, when the spectra of the signal and the noise are superimposed, the filtering will distort the spectrum of reference signal. The correlation methods that require observation of the signal over the full period are only effective in cases where no real-time recognition is necessary. Based on that the disproportion functions have been chosen as a measure of deviation between the reference and the analyzed signal. These functions are invariant to the scaling factor that allows recognizing the reference signal with unknown scaling. Moreover, there is no need for long-time monitoring of the analyzed signal. To work out the disproportion function it is enough to know just the magnitude and the first derivative of the analyzed signal. The real-time recognition method has been developed. Its efficiency has been proven on recognition of the speech commands superimposed on a high intensity periodic noise

Author Biographies

Віктор Васильович Авраменко, Sumy State University Rimsky-Korsakov Street, 2, Sumy, 40007

PhD

Department of Computer Science

Юрій Іванович Прохненко, Sumy State University Rimsky-Korsakov Street, 2, Sumy, 40007

Postgraduate

Department of Computer Science

References

  1. Путятин Е.П. Нормализация и распознавание изображений [Электронный ресурс] / Сумский гос. ун-т, летняя научно-практическая школа «Интеллектуальные системы». – Режим доступа : www/ URL: http://sumschool.sumdu.edu.ua/is-02/rus/lectures/pytyatin/pytyatin.htm/ - 13.11.2012 г. – Загл. с экрана.
  2. Ван Трис Г. Теория обнаружения, оценок и модуляции [Текст] Т. 1: пер. с англ. − М., Советское радио, 1972.
  3. Signal shape recognition in a sum of two signals [Текст] : отчет о НИР / Informatique, signaux et systemes de Sophia Antipolis, H. Rix. – ISRN I3S/RR–2010-12-FR.–UNSA-CNRS, 2010.
  4. Авраменко, В.В. Характеристики непропорциональности числовых функций и их применения при решении задач диагностики [Текст] / В.В. Авраменко // Вісник Сумського державного університету. — 2000. — №16.
  5. Авраменко, В.В. Распознавание фрагментов заданных эталонов в анализируемом сигнале с помощью функций непропорциональности [Текст] / В.В. Авраменко, А.П. Карпенко// Вісник Сумського державного університету. — 2002 — №1 (34) – С. 96.

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Published

2012-12-14

How to Cite

Авраменко, В. В., & Прохненко, Ю. І. (2012). Recognition of the periodic reference signal superimposed with periodic interference. Eastern-European Journal of Enterprise Technologies, 6(4(60), 64–68. https://doi.org/10.15587/1729-4061.2012.5686

Issue

Vol. 6 No. 4(60) (2012): Mathematics and Cybernetics - fundamental and applied aspects

Section

Mathematics and Cybernetics - applied aspects

License

Copyright (c) 2014 Віктор Васильович Авраменко, Юрій Іванович Прохненко

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