Functions of variable bandwidth via time-frequency analysis tools
نویسندگان
چکیده
منابع مشابه
Weight Functions in Time-frequency Analysis
We discuss the most common types of weight functions in harmonic analysis and how they occur in time-frequency analysis. As a general rule, submultiplicative weights characterize algebra properties, moderate weights characterize module properties, Gelfand-Raikov-Shilov weights determine spectral invariance, and Beurling-Domar weights guarantee the existence of compactly supported test functions.
متن کاملComparative Analysis of Active Bandwidth Estimation Tools
A comparative analysis of state-of-the-art active probing tools for bandwidth estimation is outlined. Techniques and tools for capacity, available bandwidth and bulk transfer capacity estimation are simultaneously assessed. First, a generic framework for the design of active bandwidth estimation tools is proposed as a result of our analysis of the implementation and performance of a number of a...
متن کاملTime-Frequency analysis via the Fourier Representation
The nonstationary nature of signals and nonlinear systems require the time-frequency representation. In time-domain signal, frequency information is derived from the phase of the Gabor’s analytic signal which is practically obtained by the inverse Fourier transform. This study presents time-frequency analysis by the Fourier transform which maps the time-domain signal into the frequency-domain. ...
متن کاملLocalization Operators via Time-Frequency Analysis
A systematic overview of localization operators using a time-frequency approach is given. Sufficient and necessary regularity results for localization operators with symbols and windows living in various function spaces (such as L or modulation spaces) are discussed. Finally, an exact and an asymptotic product formulae are presented.
متن کاملTime-frequency tools of signal processing for EISCAT data analysis
We demonstrate the usefulness of some signalprocessing tools for the EISCAT data analysis. These tools are somewhat less classical than the familiar periodogram, squared modulus of the Fourier transform, and therefore not as commonly used in our community. The first is a stationary analysis, ‘‘Thomson’s estimate’’ of the power spectrum. The other two belong to time-frequency analysis: the short...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Mathematical Analysis and Applications
سال: 2011
ISSN: 0022-247X
DOI: 10.1016/j.jmaa.2011.04.044