Título
A method to estimate the reliability of FPGA-based architectures for space systems
Autor
JUAN ANDRES PEREZ CELIS
Colaborador
RENE ARMANDO CUMPLIDO PARRA (Asesor de tesis)
Nivel de Acceso
Acceso Abierto
Materias
Space systems - (SISTEMAS ESPACIALES) FPGAs - (FPGAS) Reliability - (CONFIABILIDAD) Markov chains - (CADENAS DE MARKOV) Fault mitigation technique - (TÉCNICA DE MITIGACIÓN DE FALLAS) Voters placement - (COLOCACIÓN DE VOTANTES) CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA - (CTI) MATEMÁTICAS - (CTI) CIENCIA DE LOS ORDENADORES - (CTI)
Resumen o descripción
The use of Static Random-Access Memory (SRAM)-based Field Programmable Gate
Arrays (FPGAs) in space systems is gaining a growing interest. The high-computational
power, the ability to reconfigure and the flexibility of FPGAs at low power make them
suitable devices for space applications. Nevertheless, FPGAs are susceptible to Single
Event Upsets which may cause an operational failure, leading to a decrease of the
reliability. Fault Mitigation Techniques (FMT) are used to increase the reliability,
making the architecture suitable for operating in the space. However, estimating the
reliability of a FPGA design can be challenging. The preferred method consists of
placing the FPGA under a high-energy particle beam and performing the test iteratively
to estimate the reliability. The iterative process makes radiation testing prohibitive for
many space applications, as the monetary cost and time spent for radiation testing is
extremely high.
This thesis proposes a method for determining the reliability of an FPGA
architecture with FMTs applied based on the failure rate of an unmitigated design.
The method uses Markov chains to model the architecture and estimate the reliability.
An unmitigated design and a mitigated design were developed and placed under a
neutron beam to estimate the reliability. The mitigated design decreases the sensible
area, i.e. increases the reliability, by a factor of 20:18. The mitigated design is a
triplication of the mitigated design with additional voters placed throughout the
architecture. Two models resembling the behavior of the mitigated design with a
Medium Grain Triple Modular Redundancy (MGTMR) are proposed. The difference
of the models lies in the addition of shared-resources modules. The results of the
models show that the estimation of reliability is close to that obtained through
neutron testing.
Editor
Instituto Nacional de Astrofísica, Óptica y Electrónica
Fecha de publicación
agosto de 2016
Tipo de publicación
Tesis de maestría
Versión de la publicación
Versión aceptada
Recurso de información
Formato
application/pdf
Idioma
Inglés
Audiencia
Estudiantes
Investigadores
Público en general
Sugerencia de citación
Perez-Celis J.A.
Repositorio Orígen
Repositorio Institucional del INAOE
Descargas
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