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Amplitude and phase reconstructions with iterative algorithm

A Fast Iterative Algorithm Based on the Wirtinger Flow for Phase Retrieval

A Fast Iterative Algorithm Based on the Wirtinger Flow for Phase Retrieval

... Keywords: Phase retrieval, Wirtinger Flow algorithm, Gradient ...using amplitude-only measurements is referred to as the phase retrieval ...fast-iterative phase retrieval ...

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A Stochastic Iterative Amplitude Adjusted Fourier Transform algorithm with improved accuracy

A Stochastic Iterative Amplitude Adjusted Fourier Transform algorithm with improved accuracy

... the Iterative Amplitude Adjusted Fourier Transform (IAAFT) algorithm is ...This algorithm is able to generate so-called surrogate time series, which have the amplitude distribution and ...

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A Stochastic Iterative Amplitude Adjusted Fourier Transform algorithm with improved accuracy

A Stochastic Iterative Amplitude Adjusted Fourier Transform algorithm with improved accuracy

... the Iterative Amplitude Adjusted Fourier Transform (IAAFT) algorithm is ...This algorithm is able to generate so-called surrogate time series, which have the amplitude distribution and ...

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Surrogate cloud fields generated with the Iterative Amplitude Adapted Fourier Transform algorithm

Surrogate cloud fields generated with the Iterative Amplitude Adapted Fourier Transform algorithm

... new iterative method allows for the specification of both the power spectrum and the amplitude distribution of the parameter of interest, ...The algorithm can be supplied with additional spatial ...

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A Fast Gradient-Based Iterative Algorithm for Undersampled Phase Retrieval

A Fast Gradient-Based Iterative Algorithm for Undersampled Phase Retrieval

... Firstly, for the proposed FG-PRIME algorithm, we test its MSE performance with different number of measurements. Fig. 1 shows that the MSE performances versus iteration number in the cases of M = {64, 80, 96, ...

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Heavy-particle resonance phase shifts: an improved amplitude phase formula

Heavy-particle resonance phase shifts: an improved amplitude phase formula

... two amplitude functions The aim here is to find an algorithm or equation that determines the precise value of the phase shift from a single computation given l and energy E (or k) as well as ...

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A compressed sensing-based iterative algorithm for CT reconstruction and its possible application to phase contrast imaging

A compressed sensing-based iterative algorithm for CT reconstruction and its possible application to phase contrast imaging

... Computed Tomography (CT), which obtains a series of projection data of objects con- cerned from several view angles, can get the tomograms of the objects through the technology of image reconstruction. From a purely ...

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The detection of phase amplitude coupling during sensory processing

The detection of phase amplitude coupling during sensory processing

... PLV-MI-Cohen algorithm produced a much more constrained pattern of significant alpha- gamma PAC, with peaks between 9–11 Hz phase and 50–70 Hz ...the phase-amplitude clusters reached ...

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Millimeter-Wave Holographic Imaging Algorithm with Amplitude Corrections

Millimeter-Wave Holographic Imaging Algorithm with Amplitude Corrections

... holographic algorithm and realize it as a practical mmw body scanner which can be used in security ...only phase but also the amplitude of the signal is delicately dealt with since it has a great ...

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Iterative Code-Aided ML Phase Estimation and Phase Ambiguity Resolution

Iterative Code-Aided ML Phase Estimation and Phase Ambiguity Resolution

... joint phase estima- tion and phase ambiguity resolution for a turbo-coded sys- tem ...EM algorithm [14] to derive a maximum-likelihood (ML) method for PE and ...PE algorithm does not ...

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Iterative phase retrieval for digital holography: tutorial

Iterative phase retrieval for digital holography: tutorial

... of iterative phase retrieval algorithms based on the Gerchberg–Saxton (GS) algo- rithm applied in digital ...GS-based algorithm that allows reconstruction of 3D samples is ...planes. Iterative ...

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Two Phase Iterative Clustering for Educational Data

Two Phase Iterative Clustering for Educational Data

... Lines P8 and P9 compute the involvement of x to the local high degree in two cases: either x remains in its original cluster (Cu) or x is moved to the other cluster (Cv). If moving x gives an improvement in the local ...

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Influence of Ultra Low Dose and Iterative Reconstructions on the Visualization of Orbital Soft Tissues on Maxillofacial CT

Influence of Ultra Low Dose and Iterative Reconstructions on the Visualization of Orbital Soft Tissues on Maxillofacial CT

... Various iterative reconstruction technologies have been imple- mented to reduce image noise and improve the quality of low- dose ...statistical iterative reconstruction uses information obtained from the ...

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Quantitative CT texture analysis for diagnosing systemic sclerosis: Effect of iterative reconstructions and radiation doses

Quantitative CT texture analysis for diagnosing systemic sclerosis: Effect of iterative reconstructions and radiation doses

... sinogram-affirmed iterative reconstruction (SAFIRE) ...learning algorithm artificial neural network (ANN) with backpropagation (MultilayerPerceptron) for differentiat- ing between SSc and non-SSc ...

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Between phase and amplitude oscillators

Between phase and amplitude oscillators

... How irregular is the regime which settles beyond K 4 ? How does chaos emerge? Before proceeding further, it is in- structive to stress the conceptual difference between micro- scopic and macroscopic chaos. The former one ...

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Low-dose CT of the lung: potential value of iterative reconstructions

Low-dose CT of the lung: potential value of iterative reconstructions

... pulmonary infections in immunocompromised conditions. Secondly, the two tube voltage protocols (80 and 100 kVp) were not performed within the same patient popula- tion, and therefore image noise aspects are difficult to ...

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Low-dose CT of the lung: potential value of iterative reconstructions

Low-dose CT of the lung: potential value of iterative reconstructions

... pulmonary infections in immunocompromised conditions. Secondly, the two tube voltage protocols (80 and 100 kVp) were not performed within the same patient popula- tion, and therefore image noise aspects are difficult to ...

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THE AMPLITUDE and phase mismatch between the inphase

THE AMPLITUDE and phase mismatch between the inphase

... Abstract—We analyze the ergodic capacity and capacity bound of a multiple-input–multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) system suffering from frequency-selective in-phase and ...

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Phase amplitude descriptions of neural oscillator models

Phase amplitude descriptions of neural oscillator models

... a phase reduction. In this paper, we generalise the phase description that allows one to track the evolution of distance from the cycle as well as phase on ...

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Phase-Amplitude Descriptions of Neural Oscillator Models

Phase-Amplitude Descriptions of Neural Oscillator Models

... Abstract Phase oscillators are a common starting point for the reduced description of many single neuron models that exhibit a strongly attracting limit ...a phase reduction. In this pa- per, we generalise ...

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