Simultaneous gain, drift and offset estimation in measurement systems using coherent sampling
Paper
Paper/Presentation Title | Simultaneous gain, drift and offset estimation in measurement systems using coherent sampling |
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Presentation Type | Paper |
Authors | |
Author | Leis, John |
Editors | Wysocki, Tadeusz A. and Wysocki, Beata J. |
Journal or Proceedings Title | Proceedings of the 7th International Conference on Signal Processing and Communication Systems (ICSPCS 2013) |
Number of Pages | 5 |
Year | 2013 |
Place of Publication | United States |
ISBN | 9781479913190 |
Digital Object Identifier (DOI) | https://doi.org/10.1109/ICSPCS.2013.6723972 |
Web Address (URL) of Paper | https://ieeexplore.ieee.org/document/6723972 |
Conference/Event | 2013 7th International Conference on Signal Processing and Communication Systems (ICSPCS 2013) |
Event Details | Rank C C C C C C C C C C |
Event Details | 2013 7th International Conference on Signal Processing and Communication Systems (ICSPCS 2013) Parent International Conference on Signal Processing and Communication Systems Event Date 16 to end of 18 Dec 2013 Event Location Gold Coast, Australia |
Abstract | In instrumentation and measurement systems, external noise is often a significant problem. The particular signal processing techniques employed to enable such measurements depend somewhat on the nature of the problem at hand, what is able to be measured, and other factors. Techniques such as coherent averaging and synchronous detection take advantage of situations where a time-synchronous signal is available. A problem which may prevent successful application of these methods is the presence of slowly-changing drift, which is inevitably associated with many types of sensors. In this paper, a novel technique is proposed to estimate the measured signal amplitude using a matrix representation of coherently sampled repetitive measurement sweeps. It is also shown how the technique may be extended using partitioning of the signal matrix to account for both sensor offset and linear time drift. The method is able to simultaneously produce good estimates of the signal amplitude, drift and offset. Results demonstrate that the technique is promising when applied in situations where sensor drift precludes the normal application of synchronous detection. |
Keywords | signal processing; measurement; noise; sensors |
ANZSRC Field of Research 2020 | 400907. Industrial electronics |
400607. Signal processing | |
400801. Circuits and systems | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | School of Mechanical and Electrical Engineering |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2124/simultaneous-gain-drift-and-offset-estimation-in-measurement-systems-using-coherent-sampling
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