Alexander Kovtonyuk

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The effectiveness of small microphone arrays for in car use is investigated. These arrays are designed for speech enhancing at noise background within the cabin of a moving car. Speech and noise simulation based on designed mathematical algorithm of sound field modeling within a car cavity is applied for predicting effectiveness of the spatial-time(More)
As is well known, the problem of signal reconstruction may be reduced to estimation of coe cients of some signal decomposition. In the previous paper [1] we have shown, that optimal coordinate basis for this method must be formed from eigenfunctions of the Fisher's information operator (so-called PIC-basis). However direct usage of the PIC-basis is not(More)
The given paper is further development of papers [1] – [3], in which method of the Principal Informative Components (PIC) have been proposed. The PIC-method provides decreasing of estimation error in signal reconstruction problems. The method also can be used for problems of a source coding. PIC-technique is based on using of properties of(More)
Method for solution of reconstruction problems of signal processing theory is proposed. The method is based on series expansion of reconstructing fields in special basis, which is formed from eigenfunctions of Fisher’s information operator. These functions, which satisfy certain conditions, are referred to as Principal Informative Components (PIC). I t is(More)
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