Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.650049
Title: Evolvable hardware platform for fault-tolerant reconfigurable sensor electronics
Author: Stefatos, Evangelos F.
Awarding Body: University of Edinburgh
Current Institution: University of Edinburgh
Date of Award: 2007
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Abstract:
The advent of System-on-Chip technology and the continuous shrinkage in silicon device feature size are dictating the need for realisation of miniaturised integrated robust and autonomous systems. This need is especially evident in systems operating within hostile environments, such as aerospace. Evolvable Hardware (EHW) is a technology, which shows promise in meeting the needs of systems facing malfunctions due to harsh electronics environments. Key features of EHW are a reconfigurable fabric and an evolutionary strategy. The design of a complete and efficient EHW framework must consider both these features concurrently. This comprehensive approach to the design of EHW based systems is an issue considered by only a few researchers in the literature. This thesis presents a novel holistic EHW framework that accomplishes all the electronics associated with the JPL/Boeing gyroscope sensor. It includes an efficient fault-tolerant reconfigurable fabric and an integrated on-chip multi-object evolutionary strategy. The conception and implementation of both parts also consider real-time adaptation and low-power consumption for enabling ultra-long life aerospace missions. A number of key objectives have been achieved: a) The Verilog implementation of an autonomous reconfigurable fabric that is capable of accomplishing the sensor’s electronics with substantial accuracy (>99.7%), b) The implementation of numerous evolutionary strategies that are able to primarily guide the hardware evolution even in the presence of 30% faults injected in the user and configuration memory of the system, c) This in addition to a reduction from 8.6 to 9.8 times in the number of generations that are needed for the evolution of a 31-tap FIR filter, compared with previous research in this field, d) Furthermore, the circuits evolved consume 3.3 times less power than similar implementations within industrial reconfigurable devices.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.650049  DOI: Not available
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