A highly reliable, high performance open avionics architecture for real time Nap-of-the-Earth operationsAn Army Fault Tolerant Architecture (AFTA) has been developed to meet real-time fault tolerant processing requirements of future Army applications. AFTA is the enabling technology that will allow the Army to configure existing processors and other hardware to provide high throughput and ultrahigh reliability necessary for TF/TA/NOE flight control and other advanced Army applications. A comprehensive conceptual study of AFTA has been completed that addresses a wide range of issues including requirements, architecture, hardware, software, testability, producibility, analytical models, validation and verification, common mode faults, VHDL, and a fault tolerant data bus. A Brassboard AFTA for demonstration and validation has been fabricated, and two operating systems and a flight-critical Army application have been ported to it. Detailed performance measurements have been made of fault tolerance and operating system overheads while AFTA was executing the flight application in the presence of faults.
Document ID
19950026076
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Harper, Richard E. (Draper, Charles Stark Lab., Inc. Cambridge, MA., United States)
Elks, Carl (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1995
Publication Information
Publication: AGARD, Low-Level and Nap-of-the-Earth (NOE) Night Operations
IDRelationTitle19950025997Collected WorksNational Aeronautics and Space Administration (NASA)/American Society for Engineering Education (ASEE) Summer Faculty Fellowship Program, 1994, volume 1