The instantaneous spectral band

Shows that while in principle all frequencies existing in a signal are needed to reconstruct it, in actuality only a small band around a central frequency is needed. The central frequency and band are essentially the first and second derivatives of the dynamic signal as defined by Poletti (1993). Th...

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Bibliographic Details
Published inProceedings of IEEE-SP International Symposium on Time- Frequency and Time-Scale Analysis pp. 28 - 31
Main Authors Vakman, D., Cohen, L., White, L.B.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1994
Subjects
Australia
Educational institutions
Fourier transforms
Frequency conversion
Fresnel reflection
Integral equations
Robustness
Time frequency analysis
USA Councils
Writing
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Summary:Shows that while in principle all frequencies existing in a signal are needed to reconstruct it, in actuality only a small band around a central frequency is needed. The central frequency and band are essentially the first and second derivatives of the dynamic signal as defined by Poletti (1993). The authors show theoretically and by example that exact reconstruction of the signal is achieved. The concept of instantaneous spectral band allows for the definition of a time-frequency distribution.< >
ISBN:0780321278
9780780321274
DOI:10.1109/TFSA.1994.467380