2024-03-29T14:13:37Z
https://kitami-it.repo.nii.ac.jp/oai
oai:kitami-it.repo.nii.ac.jp:00008618
2022-12-13T02:23:53Z
10
閾値が一様分布する確率的フラッシュAD変換器の量子化雑音の確率密度関数 (電子回路研究会・電子回路一般)
Probability Density Function of Quantization Noise in Statistical Flash A-to-D Converters
杉本, 俊貴
谷本, 洋
吉澤 , 真吾
open access
c2017 by IEEJ
確率的フラッシュADC
量子化雑音の確率密度関数
一様分布
正規分布
stochastic flash A-to-D converters
probability density function of quantization noise
uniform distribution
Gaussian distribution
This paper presents theoretical calculation results of probability density function (PDF) of quantization noise for stochastic flash A-to-D converter (SFADC) composed of many comparators with uniformly distributed threshold voltages. First, a 1-bit ADC with uniformly distributed threshold voltage was modeled as anensamble, then its quantization noise PDF has been analytically calculated. Tne result is a triangular PDF, when random input signal with uniform PDF is applied to 1-bit ADC. Finally, an SFADC composed of N I-bit ADC with uniformly distributed threshold voltages has been analyzed. Interestingly, it was found that the resulting PDF of quantization noise shows Gaussian-like distribution, unlike uniform PDF of ordinary flash ADCs. Those results has been supported by numerical simulations.
一般社団法人 電気学会
2017-10-12
jpn
conference paper
https://kitami-it.repo.nii.ac.jp/records/8618
電気学会研究会資料. ECT, 電子回路研究会
ECT-17
110
79
84
https://kitami-it.repo.nii.ac.jp/record/8618/files/ECT-17-110.pdf
application/pdf
1.5 MB
2018-02-13