The Detection Performance of Complex Cosine CWT and Entropy Analysis for Narrowband Signals

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00000493%3AG41__%2F10%3A%230000335" target="_blank" >RIV/00000493:G41__/10:#0000335 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The Detection Performance of Complex Cosine CWT and Entropy Analysis for Narrowband Signals
Original language description
The problem of detection of narrowband sinusoidal signals buried in additive noise is addressed. Detection is formulated using continuous wavelet transform (CWT) with the custom designed complex cosine wavelet and estimating the presence and frequency ofuseful signals in the wavelet domain. An adaptive entropy based threshold detector is proposed to detect presence and time localization of useful signal in the transform domain. A simple and pragmatic method of threshold setting as the average of minimum and maximum entropy is proposed. Application example is focused on detection of useful signal in the harmonic radar system. Simulation results show that the proposed method also allows detection of signals with negative signal-to-noise ratio (SNR). Time-frequency characteristic of the CWT is compared with the short-time Fourier transform (STFT) for the specific mother wavelet.
Czech name
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Czech description
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Project
<a href="/en/project/OSVTUO2009007" target="_blank" >OSVTUO2009007: FALX ? Harmonic radar for detection of IEDs along the roads</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings from 11th International Radar Symposium IRS 2010 (Volume 2)
ISBN
978-9955-690-18-4
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
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Publisher name
GEOZONDAS Ltd, Vilnius, Lithuania
Place of publication
Vilnius, Lithuania
Event location
Vilnius, Lithuania
Event date
Jun 16, 2010
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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