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Yan Xu, Huiyue Yi, Wuxiong Zhang and Hui Xu
Estimating the frequencies of multiple superimposed exponentials in noise is an important problem due to its various applications in engineering. In order to obtain good inhibition of spectral leakage and improve the estimation accuracy, an improved Chir...
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Ireneusz Kubiak and Artur Przybysz
The electromagnetic protection of IT devices includes a number of organizational and technical measures aimed at ensuring control over radiated and conducted revealing emissions. This is of particular importance for ensuring information security in wirel...
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Lei Zhu
In inverse synthetic aperture radar (ISAR) imaging system for targets with complex motion, such as ships fluctuating with oceanic waves and high maneuvering airplanes, the multi-component quadratic frequency modulation (QFM) signals are more suitable mod...
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Michal Trzos,Hasan Khaddour
Pág. 57 - 59
Non-stationary harmonic signals cannot be accuratelyrepresented by Fourier transform (FT). Fortunately, severalmethods for representing non-stationary harmonic signalsexist including Fan-Chirp trasnform (FChT) or Harmonic transform(HT). This article is f...
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