GLOMAP approach for nonlinear system identification of aircraft dynamics using flight data

Monika Marwaha, John Valasek, Puneet Singla

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

This paper introduces the Global-Local Mapping Approximation algorithm as a candidate for identifying nonlinear, six degree-of-freedom rigid body aircraft dynamics. The technique models the nonlinear dynamical model as a sum of linear model and nonlinear model. The linear model dynamics are assumed to be perturbed by a nonlinear term which represents the system nonlinearities that are not captured by the linear model. Lyapunov stability analysis is used to derive the learning laws. To demonstrate the suitability of the algorithm for nonlinear system identification of aircraft dynamics, a longitudinal and a lateral/directional example using nonlinear simulation data, and flight test data are conducted. The true nonlinear model is generated using both the six degree-of-freedom nonlinear equations of motion of an aircraft, and by flight test data. Results presented in the paper demonstrate the utility of the Global-Local Mapping Approximation for the realistic cases of an unknown control distribution matrix B and unknown influence coefficient matrix C.

Original languageEnglish (US)
Title of host publicationAIAA Atmospheric Flight Mechanics Conference and Exhibit
StatePublished - 2008
EventAIAA Atmospheric Flight Mechanics Conference and Exhibit - Honolulu, HI, United States
Duration: Aug 18 2008Aug 21 2008

Publication series

NameAIAA Atmospheric Flight Mechanics Conference and Exhibit

Other

OtherAIAA Atmospheric Flight Mechanics Conference and Exhibit
CountryUnited States
CityHonolulu, HI
Period8/18/088/21/08

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Mechanical Engineering

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  • Cite this

    Marwaha, M., Valasek, J., & Singla, P. (2008). GLOMAP approach for nonlinear system identification of aircraft dynamics using flight data. In AIAA Atmospheric Flight Mechanics Conference and Exhibit [2008-6895] (AIAA Atmospheric Flight Mechanics Conference and Exhibit).