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State estimation applications in aircraft flight-data analysis: A user's manual for SMACKThe evolution in the use of state estimation is traced for the analysis of aircraft flight data. A unifying mathematical framework for state estimation is reviewed, and several examples are presented that illustrate a general approach for checking instrument accuracy and data consistency, and for estimating variables that are difficult to measure. Recent applications associated with research aircraft flight tests and airline turbulence upsets are described. A computer program for aircraft state estimation is discussed in some detail. This document is intended to serve as a user's manual for the program called SMACK (SMoothing for AirCraft Kinematics). The diversity of the applications described emphasizes the potential advantages in using SMACK for flight-data analysis.
Document ID
19910009769
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Reference Publication (RP)
Authors
Bach, Ralph E., Jr. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 6, 2013
Publication Date
March 1, 1991
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
A-88203
NAS 1.61:1252
NASA-RP-1252
Accession Number
91N19082
Funding Number(s)
PROJECT: RTOP 505-66-41
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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