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» A Spectral Approach to Lower Bounds
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JCP
2007
98views more  JCP 2007»
13 years 7 months ago
Computation of Immittance and Line Spectral Frequencies Based on Inter-frame Ordering Property
— Line spectral frequencies (LSF) and immittance spectral frequencies (ISF) are widely used in modern speech codecs based on autoregressive model. This paper addresses LSF and IS...
Vasyl Semenov
MOC
2000
96views more  MOC 2000»
13 years 7 months ago
Galerkin eigenvector approximations
How close are Galerkin eigenvectors to the best approximation available out of the trial subspace? Under a variety of conditions the Galerkin method gives an approximate eigenvecto...
Christopher Beattie
COMPGEOM
2000
ACM
13 years 11 months ago
A trace bound for the hereditary discrepancy
Let A be the incidence matrix of a set system with m sets and n points, m ≤ n, and let t = tr M, where M = AT A. Finally, let σ = tr M2 be the sum of squares of the elements of ...
Bernard Chazelle, Alexey Lvov
TWC
2008
101views more  TWC 2008»
13 years 7 months ago
Interplay of spectral efficiency, power and doppler spectrum for reference-signal-assisted wireless communication
Expressions relating spectral efficiency, power, and Doppler spectrum, are derived for Rayleigh-faded wireless channels with Gaussian signal transmission. No side information on th...
Angel Lozano
ICIP
1998
IEEE
14 years 9 months ago
A Combinatorical Approach to Vector Tomography for Doppler Spectral Data
Velocity spectra of a flow can be made by ultrasound Doppler measurements. Using only part of the information in these spectra, it is possible to reconstruct the solenoid part and...
Kent Stråhlén