Variable-rate data sampling for low-power microsystems using modified Adams methods

Irvine, G.B., Wang, L., Dickman, P. and Cumming, D.R.S. (2003) Variable-rate data sampling for low-power microsystems using modified Adams methods. IEEE Transactions on Signal Processing, 51(12), pp. 3182-3190. (doi: 10.1109/TSP.2003.819004)

Abstract

A method for variable-rate data sampling is proposed for the purpose of low-power data acquisition in a small footprint microsystem. The procedure enables energy saving by utilizing dynamic power management techniques and is based on the Adams-Bashforth and Adams-Moulton multistep predictor-corrector methods for ordinary differential equations. Newton-Gregory backward difference interpolation formulae and past value substitution are used to facilitate sample rate changes. It is necessary to store only 2m+1 equispaced past values of t and the corresponding values of y, where y=g(t), and m is the number of steps in the Adams methods. For the purposes of demonstrating the technique, fourth-order methods are used, but it is possible to use higher orders to improve accuracy if required.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Dickman, Dr Peter
• Authors: Irvine, G.B., Wang, L., Dickman, P., and Cumming, D.R.S.
• Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
• College/School: College of Science and Engineering > School of Computing Science
• Journal Name: IEEE Transactions on Signal Processing
• Publisher: Institute of Electrical and Electronics Engineers
• ISSN: 1053-587X
• Copyright Holders: Copyright © 2003 Institute of Electrical and Electronics Engineers
• First Published: First published in IEEE Transactions on Signal Processing 51(12):3182-3190
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher