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By A. Ramachandra Rao, Khaled H. Hamed, Huey-Long Chen (auth.)

Conventionally, time sequence were studied both within the time area or the frequency area. The illustration of a sign within the time area is localized in time, i.e . the worth of the sign at each one rapid in time is easily outlined . even though, the time illustration of a sign is poorly localized in frequency , i.e. little information regarding the frequency content material of the sign at a undeniable frequency could be recognized by way of taking a look at the sign within the time area . however, the illustration of a sign within the frequency area is definitely localized in frequency, yet is poorly localized in time, and thus it truly is very unlikely to inform whilst convinced occasions happened in time. In learning desk bound or conditionally desk bound tactics with combined spectra , the separate use of time area and frequency area analyses is enough to exhibit the constitution of the method . effects mentioned within the prior chapters recommend that the time sequence analyzed during this booklet are conditionally desk bound strategies with combined spectra. also, there's a few indication of nonstationarity, specifically in longer time series.

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