Realtime digital integration for continuous Kalman filtering in nonlinear systems

Autor: James R. Rowland, Jerry A. Gaston
Rok vydání: 1975
Předmět:
Zdroj: Computers & Electrical Engineering. 2:131-140
ISSN: 0045-7906
DOI: 10.1016/0045-7906(75)90002-6
Popis: The utilization of different numerical integration formulas for on-line continuous Kalman filtering is investigated for nonlinear systems. Variational and extended versions of the Kalman filter are compared on the basis of accuracy and computational speed tradeoffs as input noise levels and system nonlinearity characteristics are varied. Digital simulations are performed on a typical nonlinear system for several combinations of filtering configurations and integration formulas with different step sizes. It is shown by ensemble-averaged Monte Carlo simulations that the second-order Adams-Bashforth formula (AB2) and the variational Kalman filter should be used for the mildly nonlinear system considered.
Databáze: OpenAIRE