نتایج جستجو برای: noise modeling

تعداد نتایج: 575353  

Journal: :international journal of nonlinear analysis and applications 2011
r. rezaeyan r. farnoush e. b. jamkhaneh

in this paper, we present an application of the stochastic calculusto the problem of modeling electrical networks. the filtering problem have animportant role in the theory of stochastic differential equations(sdes). in thisarticle, we present an application of the continuous kalman-bucy filter for a rlcircuit. the deterministic model of the circuit is replaced by a stochastic model byadding a ...

Suppression of noise and artifacts is a necessary step in biomedical data processing. Adaptive filtering is known as useful method to overcome this problem. Among various contaminants, there are some situations such as electrical activities of muscles contribute to impulsive noise. This paper deals with modeling real-life muscle noise with α-stable probability distribution and adaptive filterin...

Journal: :Turkish Journal of Agricultural and Natural Science 2022

A prototype sound monitoring and evaluation system was used to measure the noise level in a medium-sized dairy barn. In addition, distribution of from shelter also modeled order determine how much barn, where only animals, mechanical tools working workers barn were source, affect neighboring operations terms intensity. Considering that intensity fluctuates according activities during day, equal...

2000
Yuhua Cheng Chih-Hung Chen Christian Enz Mishel Matloubian Jamal Deen

In this paper, we discuss some important issues in MOSFET modeling for radio-frequency (RF) integratedcircuit (IC) design. We start with the introduction of the basics of RF modeling. A simple sub-circuit model is presented with comparisons of the data for both y parameter and fT characteristics. Good model accuracy is achieved against the measurements for a 0.25μm RF CMOS technology. The high ...

Probabilistic properties of Cox processes of relevance for statistical modeling and inference are studied. Particularly, we study the most important classes of Cox processes, including log Gaussian Cox processes, shot noise Cox processes, and permanent Cox processes. We consider moment properties and point process operations such as thinning, displacements, and superpositioning. We also discuss...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...

Journal: :the modares journal of electrical engineering 2004
mohammad mahdi homayounpour jahanshahe kabudian

a parallel hybrid system of hmm and gmm modeling techniques was implemented and used in a telephony speaker verification and identification system. spectral subtraction and weighted projection measure were used to render this system more robust against additional noise. cepstral mean subtraction method was also applied for the compensation of convolution noise due to transmission channel degrad...

اخلاص, هانیه , منصوری, نبی الله , منظم, محمدرضا , نصیری, پروین ,

Introduction: Noise is one of hazardous agents of workplaces in industries. Electric industries and power plants are among industries in which noise pollution should be taken into account. This study aimed to develop and verify a statistical model for acoustic wave propagation in an indoor environment for noise related risk reduction management. . Material and Method: This theoretical-experime...

Abstract: Background:  Many parameters effect on the noise exposure of bus drivers, which can be noted the bus type, where the engine, fuel type, age of buses and speed. The object of this study is the neural network modeling of noise exposure in Tehran bus transportation drivers. Material and Methods: Noise levels in 90 buses were sampled in three separate sub-sample including (1)30...

Journal: :CoRR 2000
Paulo J. Costa Branco J. A. Dente

Noise is source of ambiguity for fuzzy systems. Although being an important aspect, the effects of noise in fuzzy modeling have been little investigated. This paper presents a set of tests using three well-known fuzzy modeling algorithms. These evaluate perturbations in the extracted rule-bases caused by noise polluting the learning data, and the corresponding deformations in each learned funct...

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