The paper introduces two three-dimensional parity checking methods to tackle the errors in RAM memories of space on-board computers caused by particle hits in radiation belt encounters or from cosmic ray radiation. The methods utilize the pseudo and real 3D parities as redundancies to help resolve various effects of particle hits occurring in a memory block and to detect and correct the errors. By adding the third dimension to a logical memory structure, these approaches can either offset, to some extent, the inability to resolve the effects of multiple hits on a bit-plane or a column or a row in traditional 2D parity checking methods, or detect and correct this type of errors with great certainty. The methods are suitable for various radiation-dosed situations in RAM memories in some space applications.
3D parity checking models for errors in RAM memories used in space on-board computers
Dreidimensionale Paritätsüberprüfungsmodelle für Fehler in RAM-Speichern, die von Raumfahrzeug-Bordcomputern benutzt werden
Microprocessors and Microsystems ; 14 , 9 ; 599-605
1990
7 Seiten, 15 Quellen
Aufsatz (Zeitschrift)
Englisch
SOLUTIONS - Electronics-Computers - FPGA-Based, Self-Checking, Fault-Tolerant Computers
Online Contents | 2004
FUTURE OF ON-BOARD COMPUTERS FOR SPACE VEHICLES
AIAA | 1963
|Tema Archiv | 1980
Associative memories in space applications.
NTRS | 1966
|Nanotube memories for space applications
IEEE | 2004
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