This paper presents methods for the design of nonuniform filter banks. The filter bank structure is obtained from an uniformly modulated filter bank by using an allpass transform which has a lossless frequency function and a nonlinear phase function. The proposed design methods include linear and quadratic frequency domain criteria and linear constraints. Considered applications are subband ada...

Adaptive filtering in subbands is an attractive alternative to full-band schemes in many applications because of the potential for faster convergence and lower computational cost. However, the analysis of a signal into a subband representation and the synthesis back into its original full-band form carries three main penalties. These are that 1) the subsampling process often introduces aliasing...

general, any n-sequence determines a multiset of (= n!/k!(n-k)!) k-sequences. "J Suppose, conversely, that we are given a multiset 01 k-sequences. Does that multiset come from some sequence? If so, is the source sequence unique? Such questions are reminiscent of the problem of reconstructing graphs from vertex-deleted sub raphs, which has received a great deal of attention in the last twent yea...

The paper deals with a new technique of fragile image watermarking. Proposed technique exploits inter-subband dependencies in order to minimize the influence of inserted watermark on the host image quality. Using the unique watermark based on the low-frequency subband, proposed scheme is resistant against attacks based on series of images analysis. Tampering detection ability of the proposed te...

The combination of Co, Gd, and Pt materials is a representative with perpendicular magnetic anisotropy (PMA) for the all-optical switching (AOS), which provides promising route ultrafast magnetization manipulation. This paper shows that PMA Co100?xGdx/Pt multilayers mainly originates not from bulk property ferrimagnetic Co100?xGdx but interface between layers. In addition, contribution moment i...

All-solid-state batteries (ASSBs) using sulfide electrolytes hold promise for next-generation battery technology. Although a pure Li metal anode is believed to maximize energy density, numerous recent studies have implicated that Li-ion anodes (e.g., graphite and Si) are more realistic candidates due their interfacial compatibility with electrolytes. However, those ASSBs suffer from an issue si...