Results 231 to 240 of about 424,619 (265)
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Delay estimation and the estimation of coherence and phase
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1981The method of delay estimation given in Hamon and Hannan [1] is reviewed and a modification involving autoregressive model fitting is proposed. It is shown how numerical problems associated with the optimization of the criterion used in both the original and modified procedures can be circumvented.
Hannan, Edward J., Thomson, Peter J.
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Polynomial Phase Estimation by Least Squares Phase Unwrapping
IEEE Transactions on Signal Processing, 2014Estimating the coefficients of a noisy polynomial phase signal is important in fields including radar, biology and radio communications. One approach attempts to perform polynomial regression on the phase of the signal. This is complicated by the fact that the phase is wrapped modulo 2π and must be unwrapped before regression can be performed.
Robby G. McKilliam +4 more
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Phase estimation with few photons
Applied Optics, 1984A new algorithm is presented for phase tracking faint low-contrast optical fringes using a proper image photon counter. Simulations show that the tenacity of the new algorithm manifestly surpasses what has been conventionally assumed to be the photon statistical limit. Furthermore, the new algorithm is very quick and easy to compute.
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Estimation of counted quantum phase
Physical Review A, 1995The estimation of phase shift in realistic experiments is addressed here. Provided that the phase concept is not ideal, the phase shift should always be inferred from the performed measurement. Particulary, two different estimations are suggested.
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Estimation of sensor gain and phase
IEEE Transactions on Signal Processing, 1994The problem of estimating the direction-independent gain and phase characteristics of an array of sensors, using knowledge of the true field covariance at the sensor locations, is considered. A concise expression for the log-likelihood function is derived and several mathematical properties of this objective function are given.
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2004 IEEE International Symposium on Industrial Electronics, 2004
In order to maintain balance, the central nervous system processes information from visual, vestibular and proprioceptive origin and coordinates an appropriate muscle response. A deficiency of sensory inputs or in the central nervous system usually results in balance disorders.
R. Fournier, E. Delechelle, J. Lemoine
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In order to maintain balance, the central nervous system processes information from visual, vestibular and proprioceptive origin and coordinates an appropriate muscle response. A deficiency of sensory inputs or in the central nervous system usually results in balance disorders.
R. Fournier, E. Delechelle, J. Lemoine
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Phase estimation in interferometry
Journal of Physics A: Mathematical and General, 1998Summary: An objective theory of phase shift estimation is formulated within quantum mechanics and quantum estimation theory. The general validity of Bayesian analysis even in the limit of very low particle numbers is demonstrated using the information of measured phase-sensitive data.
Zawisky, M. +5 more
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Phase Reassignment with Efficient Estimation of Phase Difference
2022 30th European Signal Processing Conference (EUSIPCO), 2022Maria Åkesson 0001, Maria Sandsten
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Estimators for instantaneous phase
Geoexploration, 1984Abstract Mean-squared error versus signal-to-noise ratio (SNR) of four estimators of instantaneous phase are compared. The simulator produces a noisy waveform with noise-free signal having zero instantaneous phase. The zero-phase assumption is without loss of generality when reference waveforms are known a priori.
Lenard L. Hailey, R.Lynn Kirlin
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Improving Phase Estimation With Leakage Minimization
IEEE Transactions on Instrumentation and Measurement, 2004This paper presents possibilities of an error reduction of the phase estimation with an interpolated discrete Fourier transform (DFT). The properties of interpolations are studied for the rectangular and Hanning windows with respect to their ability for correction systematic effects.
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