نتایج جستجو برای: white noise

تعداد نتایج: 361249  

2005
Shahadat Chowdhury Ashish Sharma

We present a method to ascertain optimal parameter values in the presence of a known measurement error distribution. This method is known as simulation extrapolation (SIMEX). Say X is an input variable with no error and Y is the response variable. Consider instead of X our input variable is W where, W= X+ N(0, σ). The calibrated parameter with W as input is called the naïve parameter estimate. ...

2005
Srinath Puducheri

We review the capacity-achieving coding scheme for the power-constrained wide-band Additive White Gaussian Noise (AWGN) channel (with noiseless feedback) that was proposed in [1]. The performance of this scheme for the cases of (i) non-Gaussian additive white noise on the forward path, and (ii) AWGN on both forward and feedback paths, is also discussed.

2001
Hiroshi Matsumoto Akihiko Shimizu Kazumasa Yamamoto

This paper examines the effectiveness of a generalized dynamic cepstrum in distant speech recognition. The generalized dynamic cepstrum (DyMFGC) is based upon the forward masking on the generalized logarithmic spectrum instead of the log-spectrum, which intends to make it robust to additive noise as well as convolutional noise. Digit recognition tests were carried out in a relatively quiet and ...

Journal: :iranian red crescent medical journal 0
s a moussavi-najarkola depu~togncowpowk~a iooalthmawhoocooomeoocmmd{cimnsg{mnwesniuurooeurmdu~mwewiv}r{}}})(tmu), jalal aal ahmad highway, nasr bridge, iran 982182883849, [email protected] a khavanin depu~togncowpowk~a iooalthmawhoocooomeoocmmd{cimnsg{mnwesniuurooeurmdu~mwewiv}r{}}})(tmu), jalal aal ahmad highway, nasr bridge, iran 982182883849, [email protected]; depu~togncowpowk~a iooalthmawhoocooomeoocmmd{cimnsg{mnwesniuurooeurmdu~mwewiv}r{}}})(tmu), jalal aal ahmad highway, nasr bridge, iran 982182883849, [email protected] r mirzaei dept. of occupational health, health promotion research center, zahedan university of medical sciences (zums), iran

background outer hair cells' (ohcs') dysfunctions as the extent of temporary and permanent threshold shifts (tts and pts) and cochlear damage were assessed in rabbits exposed to continuous noise methods twelve new zealand white rabbits were studied in noise (n) (n=6; exposed to continuous noise; 95 db spl, 500-8000 hz for 8 h per day during 5 consecutive days) and control (c) (n=6; no...

We investigate harvesting electrical energy from Gaussian white, Gaussian colored, telegraph and random phase-random amplitude (RARP) noises, using linear and nonlinear electromechanical systems. We show that the output power of the linear system with one or two degrees of freedom, is maximum for the Gaussian white noise. The response of the system with two degrees of freedom is widened in a la...

Journal: :Finance and Stochastics 2000
Knut K. Aase Bernt Øksendal Nicolas Privault Jan Ubøe

We use a white noise approach to Malliavin calculus to prove the following white noise generalization of the Clark-Haussmann-Ocone formula F (ω) = E[F ] + T 0 E[D t F |F t ] W (t)dt Here E[F ] denotes the generalized expectation, D t F (ω) = dF dω is the (generalized) Malliavin derivative, is the Wick product and W (t) is 1-dimensional Gaussian white noise. The formula holds for all f ∈ G * ⊃ L...

2000
Knut Aase Bernt Øksendal Nicolas Privault Jan Ubøe

We use a white noise approach to Malliavin calculus to prove the following white noise generalization of the Clark-Haussmann-Ocone formula F (ω) = E[F ] + T 0 E[D t F |F t ] ⋄ W (t)dt Here E[F ] denotes the generalized expectation, D t F (ω) = dF dω is the (generalized) Malliavin derivative,⋄ is the Wick product and W (t) is 1-dimensional Gaussian white noise. The formula holds for all f ∈ G * ...

2000
Nobuhiko Kitawaki Futoshi Asano Takeshi Yamada

Performance of the echo canceller can be conventionally measured by putting white Gaussian noise into the echo canceller system. However, white Gaussian noise is not adequate as the test signal, since the performance may depend on the characteristics of input test signal, and the characteristics of the white Gaussian noise differ from those of real spoken language. This paper describes characte...

Journal: :Physical review. A, General physics 1988
Fox Gatland Roy Vemuri

Traditionally, stochastic differential equations used in the physical sciences have involved Gaussian white noise. ' In recent times, however, white noise has been replaced by colored noise in a variety of contexts. Laser noise problems and first passage time problems have been shown to necessitate the use of colored noise instead of white noise. Even the mathematical foundations for the theory...

2016
Hakeem A. Othman

Based on an adequate new Gel’fand triple, we construct the infinite dimensional free Gaussian white noise measure μ using the Bochner-Minlos theorem. Next, we give the chaos decomposition of an L2 space with respect to the measure μ .

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