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13:10 May 23, 2006 |
English to Dutch translations [PRO] Electronics / Elect Eng | |||||||
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| Selected response from: Jack den Haan Netherlands Local time: 15:45 | ||||||
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4 | 200.000 tijd/frequentie-zoekkanalen |
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Discussion entries: 2 | |
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200.000 tijd/frequentie-zoekkanalen Explanation: Gewoon een standaardkenmerk van signaalacquisitie. -------------------------------------------------- Note added at 2 hrs (2006-05-23 16:02:50 GMT) -------------------------------------------------- http://en.wikipedia.org/wiki/Time-frequency_analysis A time-frequency representation (TFR) is a view of a signal (taken to be a function of time) represented over both time and frequency. Time-frequency analysis means analysis of a TFR. A signal, as a function of time, may be considered as a representation with perfect temporal resolution. The magnitude of the Fourier transform (FT) of the signal may be considered as a representation with perfect spectral resolution but with no temporal information (although the magnitude of the FT conveys frequency content, it fails to convey where in time different events occur in the signal). TFRs provide some temporal information and some spectral information, simultaneously. Thus, TFRs are used for the analysis of signals containing multiple time-varying frequencies etc. |
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