Generalized Hybrid Scale-Frequency-Time Distributions in Time-Frequency Space: Continued Review
نویسندگان
چکیده
منابع مشابه
Time-Frequency Distributions-A Review
A review and tutorial of the fundamental ideas and methods of joint time-frequency distributions is presented. The objective of the field is to describe how the spectral content of a signal is changing in time, and to develop the physical and mathematical ideas needed to understand what a time-varying spectrum is. The basic goal is to devise a distribution that represents the energy or intensit...
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Scale is a physical attribute of a signal which occurs in many natural settings. Time-frequency distributions (TFDs) belonging to Cohen’s class are invariant to time and frequency shifts, but are not necessarily covariant to the time scalings of the signal. Conditions on the time-frequency kernel for yielding a scale covariant distribution have been previously derived (Cohen, 1995) . In this pa...
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Study of the additive Gaussian noise influence on time-frequency (TF) distributions is an important issue [Article 9.1]. However, in many practical applications, especially in communications, signals are disturbed by a kind of impulse noise. These noises are commonly modeled by heavy-tailed (long-tailed) probability density functions (pdfs) [6]. It is well known fact that the conventional TF di...
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ژورنال
عنوان ژورنال: Proceedings of Telecommunication Universities
سال: 2018
ISSN: 1813-324X
DOI: 10.31854/1813-324x-2018-4-4-20-35