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A consistent theory of optimum subband coding of zero mean wide-sense cyclostationary signals with Nperiodic statistics is presented in this paper. Blocked polyphase representation of the analysis and synthesis filter banks is introduced as an effective way of multirate subband coder description. Optimum energy compaction using Nyquist-M process is presented as a solution for maximizing the cod...

A new algorithm for the interpolation of temporal intermediate images using polyphase weighted median filters is proposed in this paper. To achieve a good interpolation quality not only in still but also in moving areas of the image, vectorbased interpolation techniques have to be used. However, motion estimation on natural image scenes always suffers from errors in the estimated motion vector ...

The paper presents the results of study vibration machines for technological purposes. theory of
 joint movement working bodies vibrating and processed environments modeled by discrete-continuous
 systems is developed. complex approach to decision a question modeling difficult dynamic with variable characteristics elastic elements at realization process considered. parameters resonant...

This paper presents the design of an image-reject continuous-time (CT) quadrature bandpass (QBP) ∆Σ modulator using a tailored signal-transfer-function (STF) design. The quadrature delta-sigma noise shaping with polyphase filter implementations and strategic IF placement effectively improve image rejection internally. The Fifth-order CT QBP ∆Σ modulator planned for WiMAX and Bluetooth standards...

A new filter structure and design method for time-varying cosine modulated FIR filter banks with critical sampling, perfect reconstruction, and an efficient implementation is presented. The proposed filter banks have an arbitrary system delay which can be chosen in the design process and is independent of the arbitrary filter length, hence making a low system delay possible. The time variation ...