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This paper proposes a new method for designing nonuniform filter banks (NUFBs) with perfect-reconstruction (PR) and linear-phase (LP) properties. It is based on the recombination structure, where the outputs of the analysis filters in a uniform original filter bank (FB) are combined by the synthesis bank of recombination FBs. New matching conditions on the(More)
This paper presents a class of perfect-reconstruction (PR) nonuniform cosine-modulated filter-banks (CMFBs) with dynamic recombination, which based on a two-stage structured nonuniform filter-bank (FB). By dynamically merging consecutive subbands in an original uniform FB with pre-designed transmultiplexers (TMUXs) having different numbers of channels, PR(More)
How does cooperative innovation affect innovation performance? Evidence from Chinese firms X.M. Xie, S.X. Zeng & C.M. Tam a School of Management, Shanghai University, Shanghai 200444, People's Republic of China; b Antai School of Management, Shanghai Jiaotong University, Shanghai 200052, People's Republic of China; c College of Science and Engineering, City(More)
A direct method of designing linear phase (LP) near perfect reconstruction (NPR) nonuniform filter banks (NUFBs) with rational sampling factors is presented. Conditions on the possible sampling factors of NUFBs are given. The band position relations and phase relations of the significant aliasing components are also analyzed. Based on these two relations,(More)
In this paper, we study the direct design of M-channel nonuniform filter banks (NUFBs) and propose a novel method for the NUFBs with linear-phase (LP) property. The filter banks we are concerned with have integer decimation factors and satisfy the maximal decimation condition. We derive a design criterion for the LP NUFBs. In addition, we propose certain(More)
This paper presents an efficient and robust phase unwrapping algorithm which combines an unscented Kalman filter (UKF) with a strategy of quantizing a paths-guided map and a pixel classification strategy based on phase quality information. The advantages of the proposed method depend on the following contributions: (1) the strategy of quantizing the(More)
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