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SPECTRAL SUBTRACTION AND SPECTRAL ESTIMATION

by Miguel A. Lagunas, Ana I. Perez-neira
"... The problem of spectral subtraction, to estimate the parameters of a single source in colored noise, is used to show the relationships between the likelihood formulation and spectral density estimation. Reported previously as a filter bank processing for spectral estimation, it is shown that the nor ..."
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The problem of spectral subtraction, to estimate the parameters of a single source in colored noise, is used to show the relationships between the likelihood formulation and spectral density estimation. Reported previously as a filter bank processing for spectral estimation, it is shown

QUALITY METRICS FOR SPECTRAL ESTIMATION

by Juan Ignacio, Quijano Ruiz, Juan Ignacio, Quijano Ruiz , 2010
"... Abstract. The quantitative assessment of the spectral estimation quality in multispectral imaging systems is an active field of research. The design and optimization of multispectral imaging systems are very dependent on how the cost function is selected. Several spectral estimation metrics have bee ..."
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Abstract. The quantitative assessment of the spectral estimation quality in multispectral imaging systems is an active field of research. The design and optimization of multispectral imaging systems are very dependent on how the cost function is selected. Several spectral estimation metrics have

Adaptive spectral estimation by the conjugate gradient method

by Huanqun Chen, Tapan Sarkar, Sohail Dianat, Huanqun Chen, Tapan K. Sarkar, Senior Member, Soheil A. Dianat, John D. Brule, Senior Member - IEEE Transactions on Acousticw, Speech, and Signal Processing , 1986
"... Adaptive spectral estimation by the conjugate-gradient method ..."
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Adaptive spectral estimation by the conjugate-gradient method

Spin Needlets Spectral Estimation

by Daryl Geller, Xiaohong Lan, Domenico Marinucci , 2009
"... We consider the statistical analysis of random sections of a spin fibre bundle over the sphere. These may be thought of as random fields that at each point p ∈ S 2 take as a value a curve (e.g. an ellipse) living in the tangent plane at that point TpS 2, rather than a number as in ordinary situation ..."
Abstract - Cited by 7 (6 self) - Add to MetaCart
situations. The analysis of such fields is strongly motivated by applications, for instance polarization experiments in Cosmology. To investigate such fields, spin needlets were recently introduced by [21] and [20]. We consider the use of spin needlets for spin angular power spectrum estimation

Multirate Spectral Estimation

by Omid S. Jahromi, Bruce A. Francis, Raymond H. Kwong - in Intl. Conf. Acoustic, Speech and Signal Processing (ICASSP , 2001
"... This article introduces a mathematical theory for estimating the power spectral density (PSD) of a random signal based on low-sampling-rate measurements. We formulate the problem using a mathematical model where an observer sees a discrete-time WSS random signal x(n) through a bank of measurement de ..."
Abstract - Cited by 2 (1 self) - Add to MetaCart
This article introduces a mathematical theory for estimating the power spectral density (PSD) of a random signal based on low-sampling-rate measurements. We formulate the problem using a mathematical model where an observer sees a discrete-time WSS random signal x(n) through a bank of measurement

Generalized Spectral Estimation

by Jeremy Berkowitz , 1996
"... This paper provides a framework for estimating parameters in a wide class of dynamic rational expectations models. The framework recognizes that dynamic RE models are often meant to match the data only in limited ways. In particular, interest may focus on a subset of frequencies. Thus, this paper de ..."
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This paper provides a framework for estimating parameters in a wide class of dynamic rational expectations models. The framework recognizes that dynamic RE models are often meant to match the data only in limited ways. In particular, interest may focus on a subset of frequencies. Thus, this paper

SPECTRAL ESTIMATES ON THE SPHERE

by Jean Dolbeault, Maria J. Esteban, Ari Laptev , 2013
"... Abstract. In this article we establish optimal estimates for the first eigenvalue of Schrödinger operators on the d-dimensional unit sphere. These estimates depend on Lp norms of the potential, or of its inverse, and are equivalent to interpolation inequalities on the sphere. We also characterize a ..."
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Abstract. In this article we establish optimal estimates for the first eigenvalue of Schrödinger operators on the d-dimensional unit sphere. These estimates depend on Lp norms of the potential, or of its inverse, and are equivalent to interpolation inequalities on the sphere. We also characterize a

Spectral estimates on 2-tori

by Bernd Ammann , 2000
"... We prove upper and lower bounds for the eigenvalues of the Dirac operator and the Laplace operator on 2-dimensional tori. In particluar we give a lower bound for the first eigenvalue of the Dirac operator for non-trivial spin structures. It is the only explicit estimate for eigenvalues of the Dirac ..."
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We prove upper and lower bounds for the eigenvalues of the Dirac operator and the Laplace operator on 2-dimensional tori. In particluar we give a lower bound for the first eigenvalue of the Dirac operator for non-trivial spin structures. It is the only explicit estimate for eigenvalues of the Dirac

Uncertainty bounds for spectral estimation

by Johan Karlsson, Tryphon T. Georgiou - IEEE Transactions on Automatic Control , 2013
"... ar ..."
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SPECTRAL ESTIMATES FOR DIFFERENTIAL FORMS

by Alessandro Savo , 2005
"... In this expository paper we review two recent estimates on the first eigenvalue of the Laplacian acting on differential forms. We start by recalling the classical facts on harmonic forms on closed manifolds; then we introduce the absolute and relative boundary conditions and report on recent sharp e ..."
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In this expository paper we review two recent estimates on the first eigenvalue of the Laplacian acting on differential forms. We start by recalling the classical facts on harmonic forms on closed manifolds; then we introduce the absolute and relative boundary conditions and report on recent sharp
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