نتایج جستجو برای: noise modeling
تعداد نتایج: 575353 فیلتر نتایج به سال:
A validation methodology and evaluation of delayed deceleration approach performance noise-impact modeling using noise measurements radar data are presented. Advanced procedures such as approaches, where aircraft maintain higher speeds therefore remain cleanly configured at lower thrust levels for longer flight periods, can be used airport abatement. Delayed approaches have been shown in to off...
The advantages of SiGe HBTs make them very promising for modern RF communication systems and therefore their noise performance becomes an important issue as well. This paper presents the noise modeling of SiGe HBTs for broad operating ranges. Two neural network structures are presented and discussed from the aspect of modeling accuracy: a basic one and an extended one obtained by adding the S-p...
In this paper, we present a Stationary Wavelet Transform (SWT) based method for the purpose of despeckling the Synthetic Aperture radar (SAR) images by applying a maximum a posteriori probability (MAP) condition to estimate the noise free wavelet coefficients. A MAP Estimator is designed for this purpose which uses Rayleigh distribution for modeling the speckle noise and Laplacian distribution ...
Background: It has been prover that the prevalence of experiencing job related stress is very high among the dentists. This stress can be the result of factors such as poor lightening of dental office and noise. This stress can cause emotional distress and threaten dentists’ physical health and affect the quality of their life. This study is conducted to determine dentists’ p...
Beamformers are a widely-used tool in brain analysis with magnetoencephalography (MEG) and electroencephalography (EEG). For the construction of the beamformer filters realistic head volume conductor modeling is necessary for accurately computing the EEG and MEG leadfields, i.e., for solving the EEG and MEG forward problem. In this work, we investigate the influence of including realistic head ...
In last several decades silicon-germanium (SiGe) technology has come into the global electronics marketplace. Commercial SiGe HBT facilitates transceiver designs and recommends transistor-level performance metrics which are competitive with the best III-V technologies (InP or GaAs), while sustaining strict fabrication compatibility with high yielding, low-cost, Si CMOS foundry processes on larg...
The unit of experimental measurement in a variety of scientific applications is the one-dimensional (1D) continuum: a dependent variable whose value is measured repeatedly, often at regular intervals, in time or space. A variety of software packages exist for computing continuum-level descriptive statistics and also for conducting continuum-level hypothesis testing, but very few offer power com...
Robust speech recognition via hidden Markov modeling of spectral vectors is studied in this paper. The hidden Markov model (HMM) mixture components are assumed complex Gaussian with zero mean, diagonal covariance, and with incorporating an unknown scalar gain term. The gain term is associated with each spectral vector and it models the varying energy of speech signals. It is estimated by applyi...
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