DETECTION OF TONE SIGNALS USING A NONLINEAR ENERGY TRACKER

Authors
HWANG SS LEE YH
Citation
Ss. Hwang et Yh. Lee, DETECTION OF TONE SIGNALS USING A NONLINEAR ENERGY TRACKER, Electronics Letters, 33(11), 1997, pp. 928-929
Citations number
3
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
33
Issue
11
Year of publication
1997
Pages
928 - 929
Database
ISI
SICI code
0013-5194(1997)33:11<928:DOTSUA>2.0.ZU;2-K
Abstract
A simple scheme is proposed for detecting tone signals narrowly spaced in frequency. By employing Teager's energy tracker as a preprocessor, the tone detector can be implemented without the use of sharp notch f ilters. The proposed detector is applied to distinguishing ITU-T V.8 a nd V.25 tone signals. The detector performance is analysed and verifie d by computer simulation.