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A Theoretical Estimate of Acoustic-Emission Stress Amplitudes
physica status solidi (b), 1974AbstractA theoretical estimate is made of the stress amplitude for acoustic emission due to the sudden local change of an inelastic strain. The source may thus be e.g. dislocation motion, crack propagation, twinning or martensitic transformation. The dynamic aspect of the acoustic emission event is emphasized. The estimates have been compared with some
K. Malén, L. Bolin
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Estimates on the residue of the scattering amplitude
Asymptotic Analysis, 2002The author considers compactly supported perturbations of the semiclassical Laplacian \(-h^2\Delta\). Let \(z_0(h)\) be a simple resonance close to the real axis, that cannot approach the real axis more than exponentially fast, i.e. \(e^{-C/h} \leq \Im z(h)\). Under some assumptions it is shown that \(z_0(h)\) is also a pole of the scattering amplitude
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Estimation of chirp signals with time-varying amplitudes
Signal Processing, 2018Abstract The problem of parameters estimation of signals composed of an unknown number of chirps with time-varying amplitude is presented using a sparse reconstruction framework. The method employs a parametric model using a weighted combination of splines to model the time-varying nature of the signal amplitudes.
Xiangxia Meng +3 more
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Variance of the estimate of amplitude distributions
Proceedings of the Institution of Electrical Engineers, 1978The paper considers the variance of experimental estimates of the amplitude probability density function due to finite record length. Analysis, assuming a normally distributed signal, is presented for both a sampled record appropriate for digital experimental procedures and for the case of a continuous record of relevance to analogue analysis ...
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Estimation of resonant peak amplitudes
Journal of Sound and Vibration, 1975A simple method is proposed for estimating the resonant peak response levels of damped structures, by using an analysis of undamped vibration. The method is based on a simple identity which is exact for a single degree of freedom system and approximate for more general systems.
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On the Probability of Resolution for the Amplitude and Phase Estimation (APES) Spectral Estimator
Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005., 2006The amplitude and phase estimation (APES) algorithm is a spectral estimation approach that estimates the complex amplitude of the power spectrum of a random process. Although its resolution performance has been observed to be slightly better than conventional FFT approaches, but quite inferior to super-resolution approaches like the Capon algorithm and
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Iterative Refinement Quantum Amplitude Estimation
2023 IEEE 16th International Symposium on Embedded Multicore/Many-core Systems-on-Chip (MCSoC), 2023Yoshiyuki Saito +5 more
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Quantum phase estimation and quantum amplitude estimation
Abstract This chapter introduces and analyses two of the most important quantum algorithmic primitives that are used in myriad applications, namely quantum phase estimation and quantum amplitude estimation (QAE). Quantum phase estimation (in the presentation covered in this chapter) uses the quantum Fourier transform, itself an ...openaire +1 more source
Maximum-Likelihood, Magnitude-Based, Amplitude and Noise Variance Estimation
IEEE Signal Processing Letters, 2021Ming-Wei Wu +2 more
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Accurate and Fast Amplitude Estimation of Signal Distorted by Noise and Harmonics for Control of VSI
IEEE Transactions on Industrial Electronics, 2021Chengcheng Li, Junhao Zhang, He Wen
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