Missile guidance system nuclear radiation protection - has memories blocked when irradiation exceeds set level and unblocked when level falls below set value

摘要

The system has a principal memory which receives and transmits cyclically data. In at least an auxiliary memory is stored at least a apart of the data destined to be stored in the principal memory. The principal and auxiliary memories are alternatively activated. Memory activation is blocked as long as the radiation intensity, to which the electronic system is submitted, is greater than a predetermined level. Activation is initiated when the radiation intensity is less than the et level. After reactivation, priority is given to data contained in the memory which was not activated at the moment of blocking.