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Matched Filter Optical Processor
Applied Optics, 1974A new tracking optical processor that uses a computer generated matched filter to process the synthetic aperture radar data is described. The general consideration in generating the matched filter is discussed in detail and some experimental results are presented.
W H, Lee, M O, Greer
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Robust matched-field matched filters
The Journal of the Acoustical Society of America, 1992The incorporation of propagation modeling into array signal processing, usually referred to as matched-field processing, has been shown to provide accurate source localization information in many situations. It is well known though that the performance of these methods is quite sensitive to uncertainty about knowledge of the environmental parameters ...
Donald F. Gingras, Neil L. Gerr
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Journal of the Optical Society of America A, 1989
A new class of nonlinear matched filters is discussed. These filters involve the transformation of the signal spectrum and the filter transfer function through a nonlinearity before they are multiplied in the transform domain. The resulting filter structures can be considered to be analogous to three-layer neural nets.
O. K. Ersoy, M. Zeng
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A new class of nonlinear matched filters is discussed. These filters involve the transformation of the signal spectrum and the filter transfer function through a nonlinearity before they are multiplied in the transform domain. The resulting filter structures can be considered to be analogous to three-layer neural nets.
O. K. Ersoy, M. Zeng
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Quasiphase-only matched filtering
Applied Optics, 1987L'idee de cette technique est le nivellement de tous les maxima du spectre d'energie du signal a ...
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Journal of the Franklin Institute, 1990
Abstract Matched filters maximize output energy at a given time instant, subject to an L2 norm (energy) constraint on the impulse response. We construct a class of Lp matched filters obtained by employing an Lp norm constraint. Of particular interest is the L∞ matched filter, whose impulse response is a binary signal.
G. Cortelazzo, A.O. Steinhardt
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Abstract Matched filters maximize output energy at a given time instant, subject to an L2 norm (energy) constraint on the impulse response. We construct a class of Lp matched filters obtained by employing an Lp norm constraint. Of particular interest is the L∞ matched filter, whose impulse response is a binary signal.
G. Cortelazzo, A.O. Steinhardt
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IEEE Transactions on Communications, 1992
A class of median type filters, called matched median filters, is defined for the estimation of the information which is carried by the amplitude of a noisy signal. These filters form the natural counterpart of linear matched filters in the class of median type filters and are maximum likelihood estimators if the noise is biexponential.
Astola, Jaakko, Neuvo, Yrjö
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A class of median type filters, called matched median filters, is defined for the estimation of the information which is carried by the amplitude of a noisy signal. These filters form the natural counterpart of linear matched filters in the class of median type filters and are maximum likelihood estimators if the noise is biexponential.
Astola, Jaakko, Neuvo, Yrjö
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Optical Engineering, 1980
Matched filtering is often too sensitive to within-class variations (rotation, translation, magnification, etc.) and too insensitive to between-class variations. Improvements can be sought by changing the input, changing the filter, or changing the way the data is handled.
H. J. Caulfield +2 more
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Matched filtering is often too sensitive to within-class variations (rotation, translation, magnification, etc.) and too insensitive to between-class variations. Improvements can be sought by changing the input, changing the filter, or changing the way the data is handled.
H. J. Caulfield +2 more
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Generalization of the linear matched filter concept to nonlinear matched filters
Applied Optics, 1990A nonlinear matched filter based image correlator is investigated. The linear matched filter is expressed as a bandpass function containing the amplitude and phase of the Fourier transform of the reference signal. The bandpass filter function is then applied to a kth law nonlinear device to produce the nonlinear matched filter function.
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2021
<p>A widely popular group of data assimilation methods in meteorological and geophysical sciences is formed by filters based on Monte-Carlo approximation of the traditional Kalman filter, e.g. <span>E</span><span>nsemble Kalman filter </span><span>(EnKF)</span ...
Marie Turčičová +2 more
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<p>A widely popular group of data assimilation methods in meteorological and geophysical sciences is formed by filters based on Monte-Carlo approximation of the traditional Kalman filter, e.g. <span>E</span><span>nsemble Kalman filter </span><span>(EnKF)</span ...
Marie Turčičová +2 more
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IEEE Transactions on Information Theory, 1983
The problem of designing robust matched filters for situations in which there is uncertainty in the signal structure or noise statistics is considered. Two general aspects of this problem are treated. First, maximin robust designs are characterized for a general Hilbert-space formulation of the matched filtering problem and explicit solutions are given
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The problem of designing robust matched filters for situations in which there is uncertainty in the signal structure or noise statistics is considered. Two general aspects of this problem are treated. First, maximin robust designs are characterized for a general Hilbert-space formulation of the matched filtering problem and explicit solutions are given
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