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Detection of tone signals using a nonlinear energy tracker

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Authors
Hwang, Sung-Soo; Lee, Yong-Hwan
Issue Date
1997-05
Publisher
Institution of Engineering and Technology
Citation
Electronics Letters, 1997, 33, (11), pp.928-929, 22-May-1997
Keywords
Energy systemsSignal detectionCommunications and signal processing
Abstract
Tone signals are widely used in communication
devices to request the initialisation of a specific operating mode to
the other side or to respond to it. For example, the operation of
V.34 class voiceband modems is initialised by tone signals specified
in ITU-T V.8 and V.25 Recommendations. These tone signals
must be detected rapidly and accurately to enable a fast start-up.
When tone signals are very narrowly spaced in frequency, the
complex implementation. We propose a simple scheme for detecting
these types of narrowly spaced tone signals. The proposed
detector eliminates the need for sharp notch filters, by employing
a simple nonlinear processor called Teagers energy tracker [l].
The detector is analytically designed and its performance is verified
by computer simulation
ISSN
0733-8716
Language
English
URI
https://hdl.handle.net/10371/6507
DOI
https://doi.org/10.1049/el:19970620
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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