Decrease Latency of Power Spectrum Peaks for Narrowband Acoustic Signal Detection in Real Time; Mechanical Engineering, Automation and Control Systems (MEACS)

Decrease Latency of Power Spectrum Peaks for Narrowband Acoustic Signal Detection in Real Time; Mechanical Engineering, Automation and Control Systems (MEACS)

Bibliographic Details
Parent link:Mechanical Engineering, Automation and Control Systems (MEACS).— 2015.— [4 p.]
Main Author: Khamukhin A. A. Aleksandr Anatolievich
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт кибернетики (ИК) Кафедра информатики и проектирования систем (ИПС)
Other Authors: Sidorov V. V. Vladislav
Summary:Title screen
We propose partial computation of Continuous Wavelet Transform (CWT) and Power Spectrum (PS) in acoustic signal detection for decrease latency caused by the repeated calculations of CWT and PS. This allows detecting growing PS peaks earlier than the full CWT and PS calculating cycle is done that important for the real time systems. Numerical simulation of the test narrowband signal detection within broadband noise with negative value of signal-to-noise ratio (-12 dB) is shown. Test signals were detected approximately from 0.25 to 0.75 second instead of one second in the original method. The offered algorithm may be used for other similar applications concerning CWT and PS computation.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2015
Subjects:
электронный ресурс
труды учёных ТПУ
узкополосные сигналы
обнаружение сигналов
вейвлеты
спектры мощности
моделирование
Online Access:http://dx.doi.org/10.1109/MEACS.2015.7414891
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=646668

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