Accession Number:

ADA277962

Title:

Spacecraft Environmental Anomalies Expert System

Descriptive Note:

Technical rept.

Corporate Author:

AEROSPACE CORP EL SEGUNDO CA TECHNOLOGY OPERATIONS

Personal Author(s):

Report Date:

1994-02-23

Pagination or Media Count:

108.0

Abstract:

An expert system has been developed by The Aerospace Corporation, Space and Environment Technology Center for use in the diagnosis of satellite anomalies caused by the space environment. The expert system is designed to determine the probable cause of an anomaly from the following candidates surface charging, bulk charging, single-event effects, total radiation dose, and space-plasma effects. Such anomalies depend on the orbit of the satellite, the local plasma and radiation environment which is highly variable, the satellite-exposure time, and the hardness of the circuits and components in the satellite. The expert system is a rule-based system that uses the Texas Instruments Personal Consultant Plus expert-system shell. The expert systems knowledgebase includes about 200 rules, as well as a number of databases that contain information on spacecraft and their orbits, previous spacecraft anomalies, and the environment. Space environment, Satellite anomalies, Expert system, Spacecraft charging, Single-event upsets, Radiation dose

Subject Categories:

  • Computer Programming and Software
  • Spacecraft Trajectories and Reentry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE