Study of Fault Tolerant Techniques for Satellite Data Handling. Final Report, December 1986

摘要

Orbital transfer vehicle and deep space probe missions were analyzed to identify the requirements of a target Data Handling Subsystem (DHS). Fault tolerant techniques were assessed to catalog the fault tolerant features especially applicable for space use. Transient faults due to heavy ion induced single event upsets were emphasized, because of their very large influence on space applications. Candidate solutions were analyzed and synthesized into a design architecture of the Target DHS. The fault tolerant features of the Target DHS are found to reside in a central on board computer. Two DHS architectures were established, one for each mission. The different requirements of dependability led to different architectures of the fault tolerant computers.