Accession Number : ADA019812

Title :   Asynchronous Comparison Monitoring of Digital Flight Control Systems.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s) : Donahey,Dayl W.

Report Date : DEC 1975

Pagination or Media Count : 98

Abstract : A method of formulating a state-space model for the analysis of redundant-channel digital flight control systems (DFCS) is described. This mathematical representation is used to determine the effects of asynchronous digital processor operations on a system such as the DFCS for the Digital Avionics Information System (DAIS) which employs comparison monitoring and voting techniques. The report briefly discussed the evolution of digital flight control systems and the motivation for DFCS comparison monitoring. A procedure is presented for performing a covariance analysis to determine the steady-state values of inherent errors.

Descriptors :   *Flight control systems, *Digital systems, Redundancy, Models, Mathematical analysis, Dual channel, Comparison, Monitoring, Errors, Avionics, Theses, Covariance

Subject Categories : Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE