Results 31 to 40 of about 424,619 (265)
Stochastic Phase Estimation and Unwrapping
Proceedings of the 8th International Conference on Pattern Recognition Applications and Methods, 2019 Phase-shift is one of the most effective techniques in 3D structured-light scanning for its accuracy and noise resilience. However, the periodic nature of the signal causes a spatial ambiguity when the fringe periods are shorter than the projector resolution. To solve this, many techniques exploit multiple combined signals to unwrap the phases and thus
Mara Pistellato +5 more
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Quantum eigenvalue estimation via time series analysis
New Journal of Physics, 2019 We present an efficient method for estimating the eigenvalues of a Hamiltonian H from the expectation values of the evolution operator for various times.
Rolando D Somma
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Iterative Code-Aided ML Phase Estimation and Phase Ambiguity Resolution
EURASIP Journal on Advances in Signal Processing, 2005 As many coded systems operate at very low signal-to-noise ratios, synchronization becomes a very difficult task. In many cases, conventional algorithms will either require long training sequences or result in large BER degradations.
Wymeersch Henk, Moeneclaey Marc
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The Journal of Engineering, 2019 Photovoltaic systems are the important part of the energy market in many countries around the world. Such systems contain several parts and one of them is the inverter to produce the AC signal.
Dariusz Kania, Jozef Borkowski
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Physical Review LettersThe goal of quantum metrology is to improve measurements' sensitivities by harnessing quantum resources. Metrologists often aim to maximize the quantum Fisher information, which bounds the measurement setup's sensitivity. In studies of fundamental limits on metrology, a paradigmatic setup features a qubit (spin-half system) subject to an unknown ...
Xingrui Song +5 more
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Capacitary Estimates for the Scattering Phase
Journal of Mathematical Analysis and Applications, 1999 Let \(H\) be the selfadjoint nonnegative definite operator \(H:=-\frac 12\Delta\) acting in \(L^6({\mathbb R}^n)\) where \(n\geq 3\). The authors perturb \(H\) by imposing Dirichlet boundary conditions on a given compact subset \(K\) of \({\mathbb R}^N\).
McGillivray, IE, Demuth, M
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Distributed Target Detection with Coherent Fusion in Tracking Based on Phase Prediction
Remote SensingIn distributed radar, a coherent system often gains attention for its higher detection potential in contrast to its non-coherent counterpart. However, even for a distributed coherent radar, it is difficult to coherently accumulate local observations in ...
Aoya Wang +3 more
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Demystifying DFT-Based Harmonic Phase Estimation, Transformation, and Synthesis
SignalsMany natural signals exhibit quasi-periodic behaviors and are conveniently modeled as combinations of several harmonic sinusoids whose relative frequencies, magnitudes, and phases vary with time.
Marco Oliveira +3 more
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Adaptive Filtering-Based Pseudo Open-Loop Three-Phase Grid-Synchronization Technique
Energies, 2020 This paper studies the grid-synchronization problem of three-phase system. Second-order adaptive filters are a popular tool for grid-synchronization.
Hafiz Ahmed +3 more
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Pragmatic Implementation With Non-Gaussian Devices of Noise-Limited Weak Value Amplification
IEEE Photonics Journal, 2021 An effective approach for general measurement based on weak value amplification using non-Gaussian broadband light sources is demonstrated. This scheme can reduce the difficulty of preparing the measurement apparatus and correcting the systematic error ...
Hao Wu +8 more
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