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Control system estimation and design for aerospace vehicles

Authors :
Stefani, R. T
Williams, T. L
Yakowitz, S. J
Publication Year :
1972
Publisher :
United States: NASA Center for Aerospace Information (CASI), 1972.

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.

Subjects

Subjects :
Structural Mechanics

Details

Language :
English
Database :
NASA Technical Reports
Notes :
NGR-03-002-115
Publication Type :
Report
Accession number :
edsnas.19720021245
Document Type :
Report