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Quantization Noise Shaping on Arbitrary Frame Expansions [PDF]

open access: goldEURASIP Journal on Advances in Signal Processing, 2006
Quantization noise shaping is commonly used in oversampled A/D and D/A converters with uniform sampling. This paper considers quantization noise shaping for arbitrary finite frame expansions based on generalizing the view of first-order classical ...
Boufounos Petros T, Oppenheim Alan V
doaj   +2 more sources

Correlation Statistics of Spectrally Varying Quantized Noise [PDF]

open access: bronzePublications of the Astronomical Society of the Pacific, 2006
I calculate the noise in the measured correlation functions and spectra of digitized, noiselike signals. In the spectral domain, the signals are drawn from a Gaussian distribution with variance that depends on frequency. Nearly all astrophysical signals have noiselike statistics of this type, many with important spectral variations.
C. R. Gwinn
openaire   +3 more sources

Deformation Quantization in White Noise Analysis [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
We define and present an example of a deformation quantization product on a Hida space of test functions endowed with a Wick product.
Rémi Léandre
doaj   +5 more sources

Influence Mechanism of Quantization Error on the Key Parameters of the Whole-Angle Hemisphere Resonator Gyroscope [PDF]

open access: yesMicromachines
The whole-angle hemispherical resonator gyroscope (WA-HRG) is critical to high-precision attitude control and navigational positioning, boasting significant deployment potential in both highly dynamic inertial navigation systems and industrial ...
Xiuyue Yan   +7 more
doaj   +2 more sources

Correlation properties of quantization noise [PDF]

open access: yes2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011
This paper examines the correlation properties of quantization noise. The quantization noise energy is subtractive if the quantizer output levels are optimized for the probability density of the input signal (pdf optimized). This paper gives a new result that shows that a quantizer (uniform or not) which has quantizer break pointsmidway between output ...
Peter Kabal
openaire   +3 more sources

A Novel Three-Point Modulation Technique for Fractional-N Frequency Synthesizer Applications [PDF]

open access: yesRadioengineering, 2013
This paper presents a novel three-point modulation technique for fractional-N frequency synthesizer applications. Convention modulated fractional-N frequency synthesizers suffer from quantization noise, which degrades not only the phase noise performance
Kang-Chun Peng   +2 more
doaj   +2 more sources

Enhancement by postfiltering for speech and audio coding in ad hoc sensor networks [PDF]

open access: yesJASA Express Letters, 2021
Enhancement algorithms for wireless acoustic sensor networks (WASNs) are indispensable with the increasing availability and usage of connected devices with microphones.
Sneha Das, Tom Bäckström
doaj   +1 more source

QuantNAS for Super Resolution: Searching for Efficient Quantization-Friendly Architectures Against Quantization Noise

open access: goldIEEE Access
This work aims to develop an automated procedure for discovering new, efficient solutions that can be effectively quantized in mixed-precision mode with minimal degradation.
Egor Shvetsov   +6 more
doaj   +2 more sources

Quantized Floquet Topology with Temporal Noise [PDF]

open access: yesPhysical Review Letters, 2021
Time-periodic (Floquet) drive is a powerful method to engineer quantum phases of matter, including fundamentally non-equilibrium states that are impossible in static Hamiltonian systems. One characteristic example is the anomalous Floquet insulator, which exhibits topologically quantized chiral edge states similar to a Chern insulator, yet is amenable ...
Christopher I. Timms   +2 more
openaire   +3 more sources

Evaluation of Information Indicators of Quantization Noise Generated by Speech Signal Analogue-Digital Conversion

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2023
The paper presents a technique for estimating the information parameters of the quantization noise generated by the analog-to-digital conversion of the measuring signal. An experiment and algorithm descriptions are presented to confirm the correctness of
V. K. Zheleznyak   +2 more
doaj   +1 more source

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