Results 51 to 60 of about 72,925 (302)
Measurement of Noise in Electronic Devices by the Fourier Transform Method
Mìkrosistemi, Elektronìka ta AkustikaThe paper considers and analyzes the method of measuring the noise characteristics of electronic circuits and devices based on data collection by a digital oscilloscope with a built-in Fourier transform.
Ivan V. Padalka, Ihor Stepanovyh Virt
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Advanced Engineering Materials, EarlyView.A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora +4 more
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Non-data-aided parameter estimation in an additive white Gaussian noise channel
, 2005 Non-data-aided (NDA) parameter estimation is considered for binary-phase-shift-keying transmission in an additive white Gaussian noise channel. Cramer-Rao lower bounds (CRLBs) for signal amplitude, noise standard deviation, channel reliability constant ...
Rasmussen, L. +9 more
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Advanced Engineering Materials, EarlyView.Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova +2 more
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Dianxin kexue, 2019 Impulsive noise interference can seriously affect the performance of underwater acoustic communication systems.An impulsive noise suppression method based on regularized threshold iteration was presented.Firstly,the null subcarrier matrix was used to ...
Nana LI +3 more
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Standing Alfvén waves with m ≫ 1 in an axisymmetric magnetosphere excited by a stochastic source [PDF]
Annales Geophysicae, 1998 In the framework of an axisymmetric magnetospheric model, we have constructed a theory for broad-band standing Alfvén waves with large azimuthal wave number m » 1 excited by a stochastic source.
A. S. Leonovich, V. A. Mazur
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Random Matrix Theory applied to the Estimation of Collision Multiplicities [PDF]
, 2012 This paper presents two techniques in order to estimate the collision multiplicity, i.e., the number of users involved in a collision [1]. This estimation step is a key task in multi-packet reception approaches and in collision resolution techniques. The
Escrig, Benoît
core
Cramer–Rao lower bounds for change points in additive and multiplicative noise [PDF]
, 2004 The paper addresses the problem of determining the Cramer–Rao lower bounds (CRLBs) for noise and change-point parameters, for steplike signals corrupted by multiplicative and/or additive white noise. Closed-form expressions for the signal and noise CRLBs
Ferrari, André +2 more
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Advanced Engineering Materials, EarlyView.Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
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LubricantsAimed at dealing with the problems of high reliability solution cost and low solution accuracy under random excitation, especially Gaussian white noise excitation, this paper proposes a probability density evolution and reliability analysis method for ...
Hongchuan Cheng +5 more
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