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Gene network shaping of inherent noise spectra
Nature, 2006Recent work demonstrates that stochastic fluctuations in molecular populations have consequences for gene regulation. Previous experiments focused on noise sources or noise propagation through gene networks by measuring noise magnitudes. However, in theoretical analysis, we showed that noise frequency content is determined by the underlying gene ...
D W, Austin +8 more
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1999
Noise shaping is a technique for increasing the resolution of analog-to-digital converters and digital-to-analog converters. The basic thought behind noise shaping is the exchange of resolution in time for resolution in amplitude. By increasing the resolution in time (oversampling) and by applying error feedback, the resolution and the theoretically ...
Jurgen van Engelen, Rudy van de Plassche
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Noise shaping is a technique for increasing the resolution of analog-to-digital converters and digital-to-analog converters. The basic thought behind noise shaping is the exchange of resolution in time for resolution in amplitude. By increasing the resolution in time (oversampling) and by applying error feedback, the resolution and the theoretically ...
Jurgen van Engelen, Rudy van de Plassche
openaire +1 more source
Information maximizing DAC noise shaping
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014DACs are usually defined as having a constant number of bits over a contiguous bandwidth. Signals in practice, however, frequently have an information or bit content which is not constant with frequency. As DAC power is a function of bits, this creates an opportunity to design a more power efficient DAC.
Zhenhua Yu, Arthur J. Redfern, Lei Ding
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Predictive Noise Shaping SAR ADC
2019 IEEE International Symposium on Circuits and Systems (ISCAS), 2019In this paper, a novel predictive first-order noise shaping SAR ADC is proposed. Noise-shaping (NS) SAR ADCs have recently gained much attention due to their low power requirements and wide dynamic range. However, for any oversampled ADC, there is a range that each sample will be within guaranteed by input bandwidth.
Jyotindra R. Shakya +2 more
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Highway noise barriers: new shapes
Journal of Sound and Vibration, 1980Abstract This paper describes the relative acoustical performances established by scale model testing of a number of relatively novel noise barriers in typical highway situations. The various barriers were thin, wide, T-profiled, cylindrically topped, corrugated, inclined, Y-profiled, arrow-profiled and of the thnadner principle, and some were ...
D.N. May, N.M. Osman
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2011
In this chapter an abstract model of a noise-shaping quantizer is derived. A noise-shaping quantizer is a more general description of a sigma-delta modulator, consisting of one or more cost functions and a selection function. The cost function is an indication of the quality of a signal or an encoding solution, and the selection function determines the
Janssen, Erwin, van Roermund, Arthur
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In this chapter an abstract model of a noise-shaping quantizer is derived. A noise-shaping quantizer is a more general description of a sigma-delta modulator, consisting of one or more cost functions and a selection function. The cost function is an indication of the quality of a signal or an encoding solution, and the selection function determines the
Janssen, Erwin, van Roermund, Arthur
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Noise shaping with bilinear integrators
[1992] Proceedings of the 35th Midwest Symposium on Circuits and Systems, 2003The authors propose the use of bilinear integrators for noise shaping of a system for oversampling, which results in improved low-frequency quantization noise suppression. The resulting signal transfer function is just a delay function. The noise shaping is improved by 6 dB for a first-order system and by 12 dB for a second-order system.
N. Tan, S. Eriksson
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2019
The noise-shaping successive approximation register (NS-SAR) ADC is an emerging hybrid architecture that achieves high resolution and power efficiency simultaneously by combining the merits of the SAR ADC and the Δ Σ ADC. They have the merits of simple, highly digital, and low-voltage tolerant, making them attractive candidates for emerging sensing and
Shaolan Li +3 more
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The noise-shaping successive approximation register (NS-SAR) ADC is an emerging hybrid architecture that achieves high resolution and power efficiency simultaneously by combining the merits of the SAR ADC and the Δ Σ ADC. They have the merits of simple, highly digital, and low-voltage tolerant, making them attractive candidates for emerging sensing and
Shaolan Li +3 more
openaire +1 more source