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Simulation studies of moving-target detection: A new approach with Wigner-Ville distribution
K. M.Muraleedhara Prabhu
Published in Institution of Engineering and Technology
1997
Volume: 144
   
Issue: 5
Pages: 259 - 265
Abstract
The authors discuss the application of Wigner-Ville distribution (WVD) for moving-target detection (MTD) in a typical ground-based radar. The proposed technique enhances the target-detection capability using the fact that the sidelobe levels in the Wigner spectrum are very small in magnitude. This in turn facilitates the realisation of the Doppler-filter bank by WVD without resorting to additional weighting to reduce the sidelobes, unlike in the current MTD-I system (FFT-based). The MTD scheme proposed exhibits good performance capabilities, by providing higher detection probabilities, lower false-alarm rates and an additional 10 dB gain in improvement factor, for ground plus weather clutter, over MTD-I. This novel approach to MTD serves as a simple and superior alternative to the MTD-II and MTD-III schemes, which have similar performance capabilities over MTD-I. Computer-simulation results are presented to support the superiority of the proposed approach. © IEE, 1997.
About the journal
JournalIEE Proceedings: Radar, Sonar and Navigation
PublisherInstitution of Engineering and Technology
ISSN13502395
Open AccessNo
Concepts (12)
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    Computer simulation
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    Digital filters
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    Fast fourier transforms
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    Radar clutter
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    RADAR STATIONS
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    Signal detection
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    Spectrum analysis
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    Tracking radar
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    DOPPLER FILTER BANKS
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    MOVING TARGET DETECTION (MTD)
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    WIGNER VILLE DISTRIBUTION (WVD)
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    Radar tracking