To estimate parameters from experiments requires the specification of models and each model will exhibit different degrees of sensitivity to the parameters sought. Although experiments can be optimally designed without regard to the experimental data actually realized, the precision of the estimated parameters is a function of the sensitivity and the statistical characteristics of the data. The precision is affected by any correlation in the data, either auto or cross, and by the choice of the model used to estimate the parameters. An informative way of looking at an experiment is by using the concept of Information. An analysis of an actual experiment is used to show how the information, the optimal number of sensors, the optimal sampling rates, and the model are affected by the statistical nature of the signals. The paper demonstrates that one must differentiate between the data needed to specify the model and the precision in the estimated parameters provided by the data.
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e-mail: emery@u.washington.edu
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The Relationship Between Information, Sampling Rates, and Parameter Estimation Models
A. F. Emery,
e-mail: emery@u.washington.edu
A. F. Emery
Dept. Mechanical Engineering, University of Washington, Seattle, WA 98195
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B. F. Blackwell,
e-mail: bfblack@sandia.gov
B. F. Blackwell
Validation and Uncertainty Quantification, Sandia National Laboratory
,1 Albuquerque, NM 87185-0828
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K. J. Dowding
e-mail: kjdowdi@sandia.gov
K. J. Dowding
Validation and Uncertainty Quantification, Sandia National Laboratory
,1 Albuquerque, NM 87185-0828
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A. F. Emery
Dept. Mechanical Engineering, University of Washington, Seattle, WA 98195
e-mail: emery@u.washington.edu
B. F. Blackwell
Validation and Uncertainty Quantification, Sandia National Laboratory
,1 Albuquerque, NM 87185-0828e-mail: bfblack@sandia.gov
K. J. Dowding
Validation and Uncertainty Quantification, Sandia National Laboratory
,1 Albuquerque, NM 87185-0828e-mail: kjdowdi@sandia.gov
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division August 24, 2001; revision received July 2, 2002. Associate Editor: A. F. Emery.
J. Heat Transfer. Dec 2002, 124(6): 1192-1199 (8 pages)
Published Online: December 3, 2002
Article history
Received:
August 24, 2001
Revised:
July 2, 2002
Online:
December 3, 2002
Citation
Emery, A. F., Blackwell, B. F., and Dowding, K. J. (December 3, 2002). "The Relationship Between Information, Sampling Rates, and Parameter Estimation Models ." ASME. J. Heat Transfer. December 2002; 124(6): 1192–1199. https://doi.org/10.1115/1.1513581
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