Accession Number : ADA137839

Title :   Initial Estimates of Damping Rates and Frequencies,

Corporate Author : AERONAUTICAL RESEARCH LABS MELBOURNE (AUSTRALIA)

Personal Author(s) : Ryall,T G

PDF Url : ADA137839

Report Date : Mar 1983

Pagination or Media Count : 18

Abstract : A simple procedure for determining initial estimates of decay frequencies from Nyquist plots has been determined. The process gives acceptable results even in the presence of a moderate amount of noise. These initial estimates may then be refined by using some non-linear method if required.

Descriptors :   *Estimates, *Damping, *Frequency, Decay, Rates, Polarity, Linear systems, Aircraft, Flight, Real time, Flight speeds, Altitude, Minicomputers, Fast fourier transforms, Equations, Approximation(Mathematics), Plotting, Stability, Identification systems, Control theory, Australia

Subject Categories : Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE