Results 211 to 220 of about 8,162,811 (252)
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On the power spectral density of self-synchronizing scrambled sequences
IEEE Transactions on Information Theory, 1998We derive a closed-form expression for the power spectral density of amplitude/phase-shift keyed bit sequences randomized through self-synchronizing scrambling when the source sequence is a stationary sequence of statistically independent bits. In addition to the dependence on the symbol pulse shape, duration, and the signal space values with which ...
Ivan J. Fair +2 more
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Power spectral density limitations of the wavelet-OFDM system
2016 24th European Signal Processing Conference (EUSIPCO), 2016Wavelet-OFDM based on the discrete wavelet transform is a multicarrier modulation technique of considerable interest, due to its good performance in several respects such as the peak-to-average power ratio and the interference cancellation, as investigated in the literature.
Chafii, Marwa +3 more
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Calculation of the power spectral density of the wavefront
SPIE Proceedings, 2000The power spectral density (PSD) was employed to be the specific criterion of the large aperture optical components. Its definition and calculation has analyzed in detail, and the results were given consequently. Furthermore, the calculation of the averaged PSD in different situation is discussed.
Rongzhu Zhang +4 more
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Covariance interpolation and geometry of power spectral densities
2009 European Control Conference (ECC), 2009When methods of moments are used for identification of power spectral densities, a model is matched to estimated second order statistics such as, e.g., covariance estimates. There is an infinite family of power spectra consistent with such an estimate and in applications, such as identification, we want to single out the most representative spectrum ...
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Power spectral density of 3D noise
SPIE Proceedings, 2017When evaluated with a spatially uniform irradiance, an imaging sensor exhibits both spatial and temporal variations, which can be described as a three-dimensional (3D) random process considered as noise. In the 1990s, NVESD engineers developed an approximation to the 3D power spectral density (PSD) for noise in imaging systems known as 3D noise.
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Power Spectral Density Background Estimate and Signal Detection via the Multitaper Method
Journal of Geophysical Research: Space Physics, 2021Simone Di Matteo +2 more
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A Reconstruction Method for Graph Signals Based on the Power Spectral Density Estimation
Digital Signal Processing, 2022Zhihua Yang, Qian Zhang, Lihua Yang
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On the Estimation of the Evolutionary Power Spectral Density
Mechanical Systems and Signal Processing, 2023H P Hong
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