For the single-pair HDSL (HDSL2), the concept of having different upstream and downstream power spectral densities is highlighted. The signal-to-noise ratio (SNR) at the input of the central office HDSL terminal unit (HTU-C) can be enhanced by boosting the power output of the remote user HDSL terminal unit (HTU-R). Further improvement in performance can be achieved by reducing the HTU-C NEXT in...

We present a multilevel routing algorithm for circuits modeled on the 3-Dimensional grid. The algorithm repeatedly contracts the grid by coalescing nodes until a small manageable size has been obtained. Routing is performed on the smaller size grid based on a modified shortest path technique. In the reverse process, the grid and subsequently all pre-routed paths are expanded. Additional routing...

Several distance measures have been proposed for comparing sets of LPC coefficients. The most popular one has been the "log likelihood ratio" proposed by Itakura [1]. In this paper we discuss this measure (strictly speaking, a somewhat generalized version of it) from both a theoretical and a practical point of view. We derive its statistical properties both when the reference vector is known an...

A major drawback with the traditional Markov formulation of social mobility is .that it 'assumes homogeneity among persons in an origin state with regard to their transition behavior. This requirement has led to a deemphasis in consideration of the ways in which the transition probabilities vary among individuals. In this paper a regression procedure is introduced which allows a ,heterogeneous ...

This paper describes one of the biometric systems text-independent speaker verification. It discusses the different stages of speaker verification in text-independent systems as well mentioning other systems for speaker verification. Each stage has its subparts, so those parts are discussed as well. The methods for the speaker-verification are displayed in the article. Feature extraction from t...

We propose a modification of kernel time series regression estimators that improves efficiency when the innovation process is autocorrelated. The procedure is based on a pre-whitening transformation of the dependent variable that has to be estimated from the data. We establish the asymptotic distribution of our estimator under weak dependence conditions. It is shown that the proposed estimation...

This paper deals with a binocular 3-D computer vision system based on the hierarchical matching of edge features, Frei and Chen operator is used to extract the edge. The average gradients of an image obtained by two isotropic operators are non-equal quantized and thresholded in an angle. Edge features are extracted after passing a preemphasis transfer function which can equalize the noise affec...

Background Significant numbers of studies struggle to recruit to target and request extension of time or additional funding. PREP is a study to develop a prediction model for adverse maternal and fetal outcomes in women with early onset pre-eclampsia. Pre-eclampsia is a condition in pregnancy associated with raised blood pressure and proteinuria and is one of the main causes of maternal and fet...