
Accession Number : AD0725068
Title : Spectral Analysis of Transient Data with Application to AutoPilot Parameter Studies.
Descriptive Note : Technical rept.,
Corporate Author : LOUISIANA STATE UNIV BATON ROUGE COLL OF ENGINEERING
Personal Author(s) : Speeg,Raymond ; Whitehouse,G. D. ; McPhate,A. J.
Report Date : MAY 1971
Pagination or Media Count : 112
Abstract : The objective of this work was to determine, through a frequency analysis approach, an appropriate range of values for the parameters which could be used to provide for an effective autopilot coupler transfer function. The power spectral density function for random data, describing the general frequency composition of the data in terms of the density of its mean square value was used in this analysis. Spectral plots of data generated by a digital simulation were compared to those of an actual flight test case used as a reference to determine when the appropriate range has been found. In the development a spectral analysis program was written that incorporates the CookeyTukey fast Fourier transfer, allowing the conversion of the data sets from the time domain to the frequency domain. This resulted in a range of values for the parameters of gain and lead in two channels of a model of the human pilot operator in an attackerevader simulation. (Author)
Descriptors : (*ADAPTIVE CONTROL SYSTEMS, MATHEMATICAL MODELS), (*AUTOMATIC PILOTS, MATHEMATICAL MODELS), SPECTRUM ANALYZERS, DECISION THEORY, TRANSFER FUNCTIONS, GAME THEORY, INTEGRAL TRANSFORMS, PROBABILITY DENSITY FUNCTIONS, STATISTICAL PROCESSES, STOCHASTIC PROCESSES, INFORMATION THEORY, POWER SPECTRA, SUBROUTINES, PERFORMANCE(HUMAN), THESES
Subject Categories : Personnel Management and Labor Relations
Statistics and Probability
Distribution Statement : APPROVED FOR PUBLIC RELEASE