DocumentCode :
607636
Title :
Defining the effective threshold using modified wigner-hough transform in FMCW-signal detection
Author :
Erdogan, A.Y. ; Gulum, T.O. ; Durak-Ata, L. ; Yildirim, T. ; Pace, P.E.
Author_Institution :
Elektron. ve Haberlesme Muhendisligi Bolumu, Yildiz Teknik Univ., Istanbul, Turkey
fYear :
2013
fDate :
24-26 April 2013
Firstpage :
1
Lastpage :
4
Abstract :
In response to the fast improvements in anti-radiation systems and electronic attack systems, radar systems began exploiting low power, wide-band, frequency agility techniques to decrease their intercept probability. This increase in the use of low probability of intercept (LPI) waveforms in current radar systems enforces the intercept receiver to use sophisticated signal processing algorithms. It has been observed that, the threshold applied on Wigner-Ville images has an impact on the efficiency of Wigner-Hough based algorithms. In this study, we investigated the effect of the WV threshold on signals with SNRs ranging from [0dB, -9dB], and suggested that the optimum threshold is between 20-40% of the max WV image energy intensity.
Keywords :
CW radar; FM radar; frequency agility; radar detection; radar receivers; FMCW-signal detection; LPI waveform; SNR ranging; WV image energy intensity; Wigner-Hough transform; Wigner-Ville image; antiradiation system; electronic attack system; frequency agility technique; intercept probability; intercept receiver; low probability of intercept; radar system; signal processing algorithm; wide-band; Conferences; High definition video; Radar imaging; Radar signal processing; Signal to noise ratio; Transforms; LFM-signal; Wigner-Hough Transform; Wigner-Ville; threshold;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing and Communications Applications Conference (SIU), 2013 21st
Conference_Location :
Haspolat
Print_ISBN :
978-1-4673-5562-9
Electronic_ISBN :
978-1-4673-5561-2
Type :
conf
DOI :
10.1109/SIU.2013.6531254
Filename :
6531254
Link To Document :
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