FMCW Signal Detection and Parameter Extraction by Cross Wigner–Hough Transform
Erdogan, A. Yasin
Gulum, Taylan O.
Pace, Phillip E.
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The combination of Wigner-Ville distribution (WVD) and Hough transform (HT) has been successfully used in detection and parameter extraction of frequency modulated continuous waveform (FMCW) signals. In this paper, a combination of Cross-Wigner-Ville and HT [(Cross Wigner-Hough transform (XWHT)] is proposed for detection and parameter extraction of FMCW signals with a novel methodology. The XWHT method makes use of the cross-terms created by WVD instead of trying to suppress them. Utilization of the properties of the cross-terms to detect and unveil the parameters of FMCW signals on HT space is a new approach. The performance of the method is compared with other Wigner-Hough transform-based methods in terms of transform speed, parameter extraction, and detection performance. As a result, this study proposes that the XWHT is a candidate method to be used in digital electronic support receivers' automatic signal detection and analysis capabilities due to its speed and performance.
The article of record as published may be found at http://dx.doi.org/10.1109/TAES.2017.2650518Published in: IEEE Transactions on Aerospace and Electronic Systems (Volume: 53 , Issue: 1 , Feb. 2017)
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