Browsing by Subject "Brownian movement"
Now showing items 1-10 of 10
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Article
Brownian-like kinematics of ball milling for particulate structural modeling
(2016)Ball milling motion has been previously studied through computationally expensive, off-line experimental video processing and numerical simulations by the discrete element method. This research establishes a more efficient ...
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Conference Object
Estimation and identification of time-varying long-term fading channels via the particle filter and the em algorithm
(2011)In this paper, we are concerned with the estimation and identification of time-varying wireless longterm fading channels. The dynamics of the fading channels are captured using a mean-reverting linear stochastic differential ...
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Conference Object
Evaluation of likelihood-ratio and performance bounds for nonlinear decision problems via stochastic PDE
(American Automatic Control Council, 1994)The nonlinear binary decision problem with signal satisfying a diffusion equation observed through noisy measurements is considered. Using the unnormalized conditional density of nonlinear filtering, expressions for ...
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Conference Object
Exact filters for Newton-Raphson parameter estimation algorithms for continuous-time partially observed stochastic systems
(IEEE, 1999)This paper presents explicit finite-dimensional filters for implementing Newton-Raphson (NR) parameter estimation algorithms. The models which exhibit nonlinear parameter dependence are stochastic, continuous-time and ...
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Article
Filtering for linear systems driven by fractional Brownian motion
(2003)In this paper we study continuous time filtering for linear multidimensional systems driven by fractional Brownian motion processes. We present the derivation of the optimum linear filter equations which involve a pair of ...
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Conference Object
Filtering for linear systems driven by fractional Brownian motion
(2000)In this paper we study continuous time filtering for linear systems driven by fractional Brownian motion processes. We present the derivation of the optimum linear filter equations which involve a pair of functional-differential ...
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Article
Mechanics and energetics modeling of ball-milled metal foil and particle structures
(2017)The reported research establishes a semi-analytical computational predictive model of fractal microstructure in ball-milled metal foils and powder particulates, with emphasis on its transformation mechanics via an energy-based ...
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Article
Multichannel deconvolution with long range dependence: Upper bounds on the Lp-risk (1 ≤ p < ∞)
(2015)We consider multichannel deconvolution in a periodic setting with long-memory errors under three different scenarios for the convolution operators, i.e., super-smooth, regular-smooth and box-car convolutions. We investigate ...
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Article
Series decomposition of fractional Brownian motion and its Lamperti transform
(2009)The Lamperti transformation of a self-similar process is a stationary process. In particular, the fractional Brownian motion transforms to the second order stationary Gaussian process. This process is represented as a ...
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Article
Stochastic power control for time-varying long-term fading wireless networks
(2006)A new time-varying (TV) long-term fading (LTF) channel model which captures both the space and time variations of wireless systems is developed. The proposed TV LTF model is based on a stochastic differential equation ...