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1	Embedded Computer for Space Applications suitable for Linux / Linuxanpassad inbyggnadsdator för rymdbruk Dahlberg, Johan January 2003 (has links) <p>This report briefly describes the special requirements for a computer board for use in space. In particular, component selection and ways of mitigating the soft and hard errors are discussed. Furthermore, one implementation for a low-cost, relatively high performance computer that will work in the harsh space environment is presented. The report is primarily intended for those familiar with digital design, who need an introduction to construction of space or other high-reliability hardware. </p><p>As the quality (resolution) of imagers, spectrometers and other data sources in scientific satellite payloads is increasing, there is also an increasing demand for more processing power in order to compress or in other way process the data before transmitting it on the limited bandwidth microwave downlink to Earth. Scientific instruments are usually mission specific and have rather low budget, so there is a need for a powerful computer board that can be used for a number of missions in order to keep the engineering costs down.</p> Datorteknik Embedded computer Space Linux Radiation Single event upsets Error correction Hamming codes Microprocessor Memory StrongARM FPGA Datorteknik Computer engineering Datorteknik
2	Embedded Computer for Space Applications suitable for Linux / Linuxanpassad inbyggnadsdator för rymdbruk Dahlberg, Johan January 2003 (has links) This report briefly describes the special requirements for a computer board for use in space. In particular, component selection and ways of mitigating the soft and hard errors are discussed. Furthermore, one implementation for a low-cost, relatively high performance computer that will work in the harsh space environment is presented. The report is primarily intended for those familiar with digital design, who need an introduction to construction of space or other high-reliability hardware. As the quality (resolution) of imagers, spectrometers and other data sources in scientific satellite payloads is increasing, there is also an increasing demand for more processing power in order to compress or in other way process the data before transmitting it on the limited bandwidth microwave downlink to Earth. Scientific instruments are usually mission specific and have rather low budget, so there is a need for a powerful computer board that can be used for a number of missions in order to keep the engineering costs down. Datorteknik Embedded computer Space Linux Radiation Single event upsets Error correction Hamming codes Microprocessor Memory StrongARM FPGA Datorteknik Computer Engineering Datorteknik
3	Classes de Steinitz, codes cycliques de Hamming et classes galoisiennes réalisables d'extensions non abéliennes de degré p³ / Steinitz classes, cyclic Hamming codes and realizable Galois module classes of nonabelian extensions of degree p³ Khalil, Maya 21 June 2016 (has links) Le résumé n'est pas disponible. / Le résumé n'est pas disponible. Structure de module galoisien Anneaux d'entiers Classes galoisiennes réalisables Classes de Steinitz Code cyclique de Hamming Ordre maximal Résolvante de Fröhlich-Lagrange Problème de plongement Idéal de Stickelberger. Galois module structure Ring of integers Realizable Galois module classes Steinitz classes Cyclic Hamming codes Maximal order Locally free class groups Fröhlich-Lagrange resolvent Embedding problem Stickelberger ideal.

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