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An adaptive system for robust analog signal sample/hold


An adaptive system for robust analog signal sample/hold

Wang, Chunyan (2008) An adaptive system for robust analog signal sample/hold. In: 2008 Conference on Human System Interactions.

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Official URL: http://dx.doi.org/10.1109/HSI.2008.4581421


In this paper, a scheme of adaptive system producing a signal sample that is equal to the input is proposed. The system consists of a simple signal sample generator and some logic gates forming a feedback loop. The sample generator is modeled as a multi-dimensional nonlinear circuit and the digital code is applied to determine the coordinates of its operating point. By using the negative feedback loop, the code is update step by step to get the right operating point for the system to produce the sample that is the closest to the input signal. This updating process makes good use of the non-linearity of the system to have the step size variable in such a way that it is large at the beginning of the process to have a quick convergence and small at the end for a small residue error. Because the signal sample is recorded by a digital code and it can be reproduced easily without problems occurring in analog signal storage and reproduction, the system can be used for a robust analog signal sample/hold. As an example of implementing such an adaptive system, a current-sample/hold circuit has been designed and presented in the paper.

Divisions:Concordia University > Gina Cody School of Engineering and Computer Science > Electrical and Computer Engineering
Item Type:Conference or Workshop Item (Paper)
Authors:Wang, Chunyan
Digital Object Identifier (DOI):10.1109/HSI.2008.4581421
ID Code:981324
Deposited By: CHUNYAN WANG
Deposited On:08 Jun 2016 19:07
Last Modified:18 Jan 2018 17:52
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