Defining the Effective Threshold using Modified Wigner-Hough Transform in FMCW-Signal Detection

被引：0
|
作者：
Erdogan, A. Yasin [1 ]
Gulum, Taylan O. [1 ]
Durak-Ata, Lutfiye [1 ]
Yildirim, Tulay [1 ]
Pace, Phillip E. [2 ]
机构：
[1] Yildiz Tekn Univ, Elekt & Haberlesme Muhendisligi Bolumu, Istanbul, Turkey
[2] US Navy, Postgrad Sch, Elekt & Bilgisayar Muhendisligi Bolumu, Monterey, CA 93943 USA
来源：
2013 21ST SIGNAL PROCESSING AND COMMUNICATIONS APPLICATIONS CONFERENCE (SIU) | 2013年
关键词：
Wigner-Ville; threshold; LFM-signal; Wigner-Hough Transform;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In response to the fast improvements in antiradiation 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.
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页数：4
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