NASA NTRS · 19720021245
Control system estimation and design for aerospace vehicles
Abstract
The selection of an estimator which is unbiased when applied to structural parameter estimation is discussed. The mathematical relationships for structural parameter estimation are defined. It is shown that a conventional weighted least squares (CWLS) estimate is biased when applied to structural parameter estimation. Two approaches to bias removal are suggested: (1) change the CWLS estimator or (2) change the objective function. The advantages of each approach are analyzed.
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Stefani, R. T., Williams, T. L., Yakowitz, S. J.. 1972-05-01. Control system estimation and design for aerospace vehicles. https://ntrs.nasa.gov/citations/19720021245
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