The residue identification algorithm and constrained least squares applied to space shuttle main engine data

Author

Bartholomew, David L. ; Irwin, Dennis

Author_Institution

Dept. of Electr. & Comput. Eng., Ohio Univ., Athens, OH, USA

fYear

1993

fDate

7-9 Mar 1993

Firstpage

279

Lastpage

284

Abstract

The residue identification algorithm (RID) is applied to flight data taken from the space shuttle main engine (SSME). Given spectral estimates of the SSME test data and the poles of the system, RID calculates a model of the spectral quantities using a least-squares technique. Application of RID to an SSME spectral estimate is shown. RID is also modified to use constrained least squares (CLS) instead of least squares. This technique is used to obtain models which more tightly fit the data within a user specified frequency range. A contrived example using RID with CLS is included to illustrate the advantages of using this method

Keywords

aerospace engines; aerospace propulsion; aerospace simulation; identification; least squares approximations; space vehicles; constrained least squares; residue identification algorithm; space shuttle main engine; spectral estimates; Algorithm design and analysis; Engines; Frequency response; Least squares approximation; Least squares methods; MIMO; NASA; Space shuttles; System testing; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

System Theory, 1993. Proceedings SSST '93., Twenty-Fifth Southeastern Symposium on

Conference_Location

Tuscaloosa, AL

ISSN

0094-2898

Print_ISBN

0-8186-3560-6

Type

conf

DOI

10.1109/SSST.1993.522786

Filename

522786