Composing of multi-pole models and simulation of dynamic responses of a technical chain system is considered in the paper. Part 1 of the paper discusses difficulties arising in using existing simulation tools. A methodology is proposed that seems to be free of most of these disadvantages. Modeling of electro-hydraulic servovalve is considered as an example of chain system. An intelligent simula...

A subspace based blind method is proposed for estimating the channel responses of a multi-user and multi-antenna OFDM uplink system. I t gives estimations to all channel responses,subject to a scalar matrix ambiguity, and does not need precise channel order information (only an upper bound for all orders is required). Furthermore, the scalar ambiguity matrix can be easily resolved by using only...

abstract prevention of infectious diseases by immunization in children has markedly diminished the morbidity and mortality of once common contagious diseases in many countries worldwide. immunization programs have led to the global eradication of smallpox, elimination of measles and poliomyelitis in regions of the world, and substantial reduction in the morbidity and mortality attributed to dip...

Multi-level Responses Martin Anderson and Steve Summer eld University of Warwick Coventry CV4 7AL UK (+44) 1203 523780 [email protected] Abstract This paper considers the design of various lters composed of allpass sub lters approximatingmulti-band,multi-level responses. These include M-level PCAS lters, tree structures of half-band recursive lters and cosinemodulated allpass-based lter b...

in this article, religiosity status of people and different social groups in the city of tehran based on clark and stark’s analytic and theoretical models have been considered. with regard to these two viewpoints, the main aim of this research is to study and identify faith, affection, rituals, conceptual and consequential of people’s religiosity. the main question is that whether results of pr...

How complex natural sounds are represented by the main converging center of the auditory midbrain, the central inferior colliculus, is an open question. We applied neural discrimination to determine the variation of detailed encoding of individual vocalizations across the best frequency gradient of the central inferior colliculus. The analysis was based on collective responses from several neur...

We propose a blind dereverberation method based on spectral subtraction using a multi-channel least mean squares (MCLMS) algorithm for distant-talking speech recognition. In a distant-talking environment, the channel impulse response is longer than the short-term spectral analysis window. By treating the late reverberation as additive noise, a noise reduction technique based on spectral subtrac...

This study examines the ability of multi-unit clusters (MUCs) in layer IV/V of primary auditory cortex of the awake rat to respond to a series of broadband click trains. The data from 113 multi-unit clusters were analyzed for synchronous and nonsynchronized responses using several methods. Synchronous responses were measured using window analysis, circular statistics and spectral analysis. Nons...