Results 191 to 200 of about 129,583 (223)
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Optical oversampled analog-to-digital conversion
Applied Optics, 1992Previously,1 we introduced a new method of optical analog-to-digital conversion based on oversampling and error diffusion coding that offers the potential to extend resolution and conversion rates beyond that currently possible with other electronic or optical converters.
B L, Shoop, J W, Goodman
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Stochastic-flash analog-to-digital conversion
IEEE Transactions on Instrumentation and Measurement, 1998Flash-type analog-to-digital converters (ADC's) presenting a nonlinear behavior, i.e., having nonequally spaced threshold levels, may introduce harmonic distortion that can be reduced by employing large-amplitude dither-based conversion techniques. However, large-scale dithering is difficult to implement and, in addition, severely reduces the ADC input
CACIOTTA, Maurizio, CARBONE P.
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1999
This chapter begins with a brief overview of analog-to-digital (A/D) conversion, wherein quantization error is considered for both Nyquist-rate and oversampling A/D converters. A subclass of oversampling converters based on noise-shaping topologies commonly referred to as sigma-delta (ΣΔ), or equivalently delta-sigma (ΔΣ), modulators are then examined.
Shahriar Rabii, Bruce A. Wooley
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This chapter begins with a brief overview of analog-to-digital (A/D) conversion, wherein quantization error is considered for both Nyquist-rate and oversampling A/D converters. A subclass of oversampling converters based on noise-shaping topologies commonly referred to as sigma-delta (ΣΔ), or equivalently delta-sigma (ΔΣ), modulators are then examined.
Shahriar Rabii, Bruce A. Wooley
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1996
In this chapter we will look at the properties of analog-to-digital converters (ADC) and the limitations they introduce into sampled data. We will discuss the relationship between the resolution and the dynamic range of ADCs and end this chapter by simulating techniques for improving the dynamic range of ADCs by gain ranging and oversampling.
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In this chapter we will look at the properties of analog-to-digital converters (ADC) and the limitations they introduce into sampled data. We will discuss the relationship between the resolution and the dynamic range of ADCs and end this chapter by simulating techniques for improving the dynamic range of ADCs by gain ranging and oversampling.
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Mathematics of Analog‐to‐Digital Conversion
Communications on Pure and Applied Mathematics, 2012AbstractAs the performance of digital circuits and the capacity of digital communication channels have advanced steadily over the past decades, digital signals have replaced analog signals in nearly every technological application domain, offering robustness, ever increasing quality, and speed.
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Photonic analog-to-digital conversion
Digest of the LEOS Summer Topical Meetings, 2005., 2005Potentially THz-regime optical quantizing and coding for ultrafast analog-to-digital conversion using fiber-optic nonlinear loop mirror is presented. Emerging applications would be in high bit rate (
K. Kitayama +4 more
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Stochastic analog-to-digital conversion
48th Midwest Symposium on Circuits and Systems, 2005., 2005This paper suggests a stochastic approach to data conversion. It is applicable to serial, parallel, two-step as well as delta-sigma ADCs and DACs. In the serial implementation of this scheme, a sample-and-hold circuit, a noise source and a comparator are combined with an accumulate-and-dump digital stage to perform serial multibit A/D conversion.
J.L. Ceballos, I. Galton, G.C. Temes
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1991
Since naturally occurring physical phenomena such as temperature, pressure, displacement, and so on, are analog, and since most practical methods of data collection, manipulation, and analysis are digital, a conversion from the analog quantities to digital quantities must take place.
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Since naturally occurring physical phenomena such as temperature, pressure, displacement, and so on, are analog, and since most practical methods of data collection, manipulation, and analysis are digital, a conversion from the analog quantities to digital quantities must take place.
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1994
Many of the communications systems addressed in this book begin with an analog signal or have an analog signal for the output. For example, a radio receiver accepts an analog signal from the antenna, processes it and outputs either an analog audio signal or digital data depending on the information being received. A radio transmitter, on the other hand,
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Many of the communications systems addressed in this book begin with an analog signal or have an analog signal for the output. For example, a radio receiver accepts an analog signal from the antenna, processes it and outputs either an analog audio signal or digital data depending on the information being received. A radio transmitter, on the other hand,
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