This paper presents a unique design and implementation of a low power decimation filter. The designed decimation filter architecture shows how the 1/3band IIR filter and a poly-phase half-band FIR filter are used effectively for multirate multistage signal processing. The 1/3-band IIR filter is realized using six first order all-pass filters. Each filter stage is simulated using Matlab and, the...

We study hard constraint satisfaction problems using some decimation algorithms based on mean-field approximations. The message-passing approach is used to estimate, beside the usual one-variable marginals, the pair correlation functions. The identification of strongly correlated pairs allows to use a new decimation procedure, where the relative orientation of a pair of variables is fixed. We a...

We study hard constraint satisfaction problems with a decimation approach based on message passing algorithms. Decimation induces a renormalization flow in the space of problems, and we exploit the fact that this flow transforms some of the constraints into linear constraints over GF(2). In particular, when the flow hits the subspace of linear problems, one can stop decimation and use Gaussian ...

This paper describes general mesh decimation methods which operate on triangle meshes. The goal of the mesh decimation is the reduction of triangles in a mesh while preserving the shape and topology as good as possible. Further the usage of mesh decimation with the Visualization Tool Kit (VTK) is explained. Currently VTK (version 4.0, June 2002) contains four mesh decimation classes: vtkDecimat...

A power efficient multirate multistage Comb decimation filter for monobit A/D converters is presented. Polyphase decomposition in all stages with high decimation factor in the first stage, are used to reduce the frequency of the input signal. Several implementations have shown that proper choice of the decimation factor of the first stage can reduce power consumption by more than 30% The multis...

The area and power consumption of oversampling analog-to-digital converters (ADCs) are governed largely by the associated digital decimation filter. This paper presents a low power, area-efficient digital decimation filter for an oversampling ADC application that employs the decorrelating (DECOR) transform in order to reduce the power dissipation and area. The DECOR transform exploits the corre...

Increased availability of QL1/QL2 Lidar terrain data has resulted in large datasets, often including quantities redundant points. Because these memory requirements, practitioners use decimation to reduce the number points used create models. This paper introduces a novel approach improve decimation, thereby reducing total count ground dataset while retaining more accuracy than Random Decimation...

We propose that effective field theories for nuclei and nuclear matter comprise of " double decimation " : (1) the chiral symmetry decimation (CSD) and (2) Fermi liquid decimation (FLD). The Brown-Rho scaling identified as the parametric dependence intrinsic in the " vector manifestation " of hidden local symmetry theory of Harada and Yamawaki results from the first decimation, i.e., CSD. In a ...

Recently it has been shown that principal component filter banks (PCFB) are optimum orthonormal filter banks for subband coding for the uniform case in which all decimation ratios are the same. In this paper we present the analogous results for the nonuniform case. In contrast to the uniform case where there is only one PCFB, there are more than one PCFB’s in the nonuniform case. For a fixed se...