Correlation background of the concept of active spectrum of nonstationary processes
DOI:
https://doi.org/10.3103/S0735272710090098Keywords:
active spectrum, active filter, correlation integral, two-dimensional correlation function, normalized correlation function, function of uncertaintyAbstract
The need of developing the known concept of active spectrum of nonstationary processes has been shown using its correlation background. Expressions for the input and response signals in complex form of the so-called active filter were derived in terms of the second known definition of this concept. A two-dimensional correlation function similar to the known uncertainty function was obtained using the known autocorrelation function of complex signals. In conclusion, some directions of the beneficial use of the correlation relationships obtained were noted, especially in solving the topical synthesis problem of optimal active filters for the specified signals.
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