Application of multiple-input/single-output analysis13; procedures to flight test data.

Sridhar, JK and Wulff, G (1991) Application of multiple-input/single-output analysis13; procedures to flight test data. Journal of Guidance, Control and Dynamics, 14 (3). pp. 645-651.

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Abstract

A computer program for tbe analysis of correlated multiple-input/single-output systems bas been developed using the techniques of Bendat. This iterative procedure allows spectral separation to enable sequential as well as13; combined inspection of input/output relationships. The analogy of conditioning of spectral density functions to13; that of Gaussian elimination bas been used for efficient realization of the algorithm. Described are the method13; and its applications to flight test data of two research vehicles, a helicopter and a new in-flight simulator. The examples show the detection of extraneous noise at the output caused by a fewer number of inputs together with13; the investigation of the control buildup in the helicopter case, and in the other case the influence of the autotrim13; system of the in-flight simulator on its direct lift control flaps. The results and conclusions are drawn based on the investigation of spectra and coherence functions.

Item Type: Article
Additional Information: Copyright for this article belongs to AIAA
Uncontrolled Keywords: Multiple input;Single output;Gaussian elimination;Algorithm
Subjects: AERONAUTICS > Aeronautics (General)
Depositing User: Users 90 not found.
Date Deposited: 01 Mar 2010
Last Modified: 14 Oct 2015 04:29
URI: http://nal-ir.nal.res.in/id/eprint/2883

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