Abstract
In this paper, we propose a self-adaptive FPGAbased, partially reconfigurable system for space missions in order to mitigate Single Event Upsets in the FPGA configuration and fabric. Dynamic reconfiguration is used here for an on-demand replication of modules in dependence of current and changing radiation levels. More precisely, the idea is to trigger a redundancy scheme such as Dual Modular Redundancy or Triple Modular Redundancy in response to a continuously monitored Single Event Upset rate measured inside the on-chip memories itself, e.g., any subset (even used) internal Block RAMs. Depending on the current radiation level, the minimal number of replicas is determined at runtime under the constraint that a required Safety Integrity Level for a module is ensured and configured accordingly. For signal processing applications it is shown that this autonomous adaption to the different solar conditions realizes a resource efficient mitigation. In our case study, we show that it is possible to triplicate the data throughput at the Solar Maximum condition (no flares) compared to a Triple Modular Redundancy implementation of a single module. We also show the decreasing Probability of Failures Per Hour by 2 × 104 at flare-enhanced conditions compared with a non-redundant system. Our work is a part of the In-Orbit Verification of the Heinrich Hertz communication satellite.
Original language | English |
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Title of host publication | 2014 IEEE 22nd International Symposium on Field-Programmable Custom Computing Machines (FCCM) |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 251-258 |
Number of pages | 8 |
ISBN (Electronic) | 978-1-4799-5111-6, 978-1-4799-5110-9 |
DOIs | |
Publication status | Published - 21 Jul 2014 |
Event | 22nd IEEE International Symposium on Field-Programmable Custom Computing Machines, FCCM 2014 - Boston, United States Duration: 11 May 2014 → 13 May 2014 Conference number: 22 http://www.fccm.org/2014/ |
Conference
Conference | 22nd IEEE International Symposium on Field-Programmable Custom Computing Machines, FCCM 2014 |
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Abbreviated title | FCCM |
Country/Territory | United States |
City | Boston |
Period | 11/05/14 → 13/05/14 |
Internet address |