2014 20th International Conference on Microwaves, Radar and Wireless Communications (MIKON) 2014
DOI: 10.1109/mikon.2014.6899959
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PWVD resolution considerations for LFMCW signal detection by WHT

Abstract: Abstract-Linear Frequency Modulated ContinuousWaveform (LFMCW) is one of the most common waveforms used in low probability of intercept (LPI) radars. The WignerHough transform (WHT) is a powerful technique for detection and parameter extraction of LFMCW waveforms that can be employed by Electronic Support Receivers. For a fast detection and a timely response to the adversary emitter, the selection of the pseudo Wigner-Ville distribution (PWVD) window length is critical. In this work we analyze the relation bet… Show more

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Cited by 8 publications
(2 citation statements)
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“…The existence of cross terms leads to false signals and false frequencies, which makes it difficult for WVD to clearly express signals with multiple frequency components, but high time-frequency aggregation characteristics (high timefrequency aggregation) of WVD is undeniable. In order to solve the problem of cross terms, WVD can be windowed to get PWVD [40]- [42], which can be expressd as follows…”
Section: B Frequency Domain Analysis Of Signals At Specific Locationsmentioning
confidence: 99%
“…The existence of cross terms leads to false signals and false frequencies, which makes it difficult for WVD to clearly express signals with multiple frequency components, but high time-frequency aggregation characteristics (high timefrequency aggregation) of WVD is undeniable. In order to solve the problem of cross terms, WVD can be windowed to get PWVD [40]- [42], which can be expressd as follows…”
Section: B Frequency Domain Analysis Of Signals At Specific Locationsmentioning
confidence: 99%
“…Both linear and nonlinear time-frequency analysis methods, including the Wigner-Ville distribution (WVD) [14], the quadrature mirror filters bank (QMFB) [2], the fractional Fourier transform (FRFT) [3,13,17], the chirplet transform [12], the Radon-ambiguity transform (RAT) [11,16], and the Wigner-Hough transform (WHT) [7,10], were explored for LFM or LFMCW signals. Among these methods, WHT-and FRFT-based techniques perform LFM signal detection and waveform parameter identification by searching for peaks in the corresponding parameter domains.…”
Section: Introductionmentioning
confidence: 99%