NDLI: Low-Cost, Radiation-Tolerant, On-Board Processing Solution

Content Provider	IEEE Xplore Digital Library
Author	Anderson, K.
Copyright Year	2005
Description	Author affiliation: SEAKR Eng. Inc., Centennial, CO (Anderson, K.)
Abstract	Advancements in payload technology are creating opportunities for the aerospace community. Commensurate with these opportunities are great challenges. Until recently, technological growth was accommodated by increased data storage. However, with today's systems of terabyte capacities and gigabyte-per-second instruments, missions are being limited by the inability to download this data. The need to get data downloaded quickly is driving the need for on-board processing. One difficulty for on-board processing is how to provide reliable processing capability for the space radiation environment in a cost-effective manner. SEAKR Engineering's approach to this problem was to use state-of-the-art commercial processors and support devices to provide the lowest cost with the highest processing performance capability, and then characterize these devices in a radiation environment. Radiation effects are then mitigated or recovered from by using support electronics implemented in radiation tolerant devices. The result is a low cost, high performance, on-board processor with a low upset rate. High performance single board computers require the integration of many different technologies including SDRAM, nonvolatile memory, interface devices, processors, custom logic, and high current power supplies. In order to achieve high performance processing capability, our architecture employs commercial devices. Each of these devices was characterized for radiation effects. Radiation effects are addressed with various mitigation techniques. From the characterization data and mitigation techniques, system upset rates for each element are calculated for the mission-specific environment. These effects and rates are rolled up into a board level upset rate. Board level thermal analysis is used to determine a reliability estimate. A custom board support package (BSP) has also been developed that allows user application code to interface to the SBC hardware peripherals. It is written in VxWorks 5.5 and uses a Tornado 2.2 debugging environment. Performance benchmark tests results such as Dhrystone are used to determine the processing capability. The paper describes the approach for creating a cost competitive product for the space environment
Starting Page	1
Ending Page	8
File Size	2216585
Page Count	8
File Format	PDF
ISBN	0780388704
DOI	10.1109/AERO.2005.1559533
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-03-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Costs Radiation effects Payloads Instruments Reliability engineering Computer interfaces High performance computing SDRAM Nonvolatile memory Logic devices
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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