NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Effect of sampling rate and record length on the determination of stability and control derivativesFlight data from five aircraft were used to assess the effects of sampling rate and record length reductions on estimates of stability and control derivatives produced by a maximum likelihood estimation method. Derivatives could be extracted from flight data with the maximum likelihood estimation method even if there were considerable reductions in sampling rate and/or record length. Small amplitude pulse maneuvers showed greater degradation of the derivative maneuvers than large amplitude pulse maneuvers when these reductions were made. Reducing the sampling rate was found to be more desirable than reducing the record length as a method of lessening the total computation time required without greatly degrading the quantity of the estimates.
Document ID
19790003925
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Brenner, M. J.
(NASA Flight Research Center Edwards, CA, United States)
Iliff, K. W.
(NASA Flight Research Center Edwards, CA, United States)
Whitman, R. K.
(NASA Flight Research Center Edwards, CA, United States)
Date Acquired
September 3, 2013
Publication Date
December 1, 1978
Subject Category
Aircraft Stability And Control
Report/Patent Number
NASA-TM-72858
H-1077
Accession Number
79N12096
Funding Number(s)
PROJECT: RTOP 505-06-64
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available