Title page for ETD etd-03242009-040805
|Type of Document
||Robust remote measurement calibration
||Master of Science
|Mili, Lamine M.
|Coakley, Clint W.
|Date of Defense
The objective of Remote Measurements Calibration (RMC) method is to minimize
systematic errors through an appropriate scaling procedure. A new method for RMC has
been developed. This method solves the problems of observability, multiplicity of
solutions, and ambiguity of reference points associated with the already existing method
proposed by Adibi et al. [6-9]. The new algorithm uses the concepts of the simulated
annealing and the matroid tree to identify and minimize the number of RTUs (Remote
Terminal Units) required to observe the system. After field calibration, these RTUs
provide measurements that are used to estimate the whole state of the system. These
estimates are then returned as a reference for remote calibrating the remaining RTUs. The
calibration coefficients are estimated by means of the Least Median of Squares (LMS)
estimator. The procedure results in the reduction of the cost associated with field
|| Approximate Download Time
| 28.8 Modem
|| 56K Modem
|| ISDN (64 Kb)
|| ISDN (128 Kb)
|| Higher-speed Access
next to an author's name indicates that all
files or directories associated with their ETD
are accessible from the Virginia Tech campus network only.
If you have questions or technical
problems, please Contact DLA.