リコンフィギュラブルな搭載機器:再構成通信機の開発報告

摘要

The expectations to space infrastructure are grown from the safety consciousness. The space infrastructure has noinfluence from terrestrial disasters. Precious remote sensing technology with advanced signal processing, ultra broadband down link system for a large amount of sensing data transmission and broad band satellite back-bone network foremergency communications are most prospective systems. Then requirements for advanced on-board processing aregetting higher and such technology for realizing those systems must be developed. From a view of satellitecommunications point, the life time of general satellite communications system has 10 to 15 years and the systemdesign is constrained by the designed technology paradigm far before the launching time. Therefore, capability ofsystem re-designing, or “reconfigurablility” is the most important asset for advanced onboard signal processing.In this paper, we report a result of development of reconfigurable onboard equipment called “ReconfigurableCommunication Equipment (RCE).” The RCE is a type of transponder system with Reconfigurable Field ProgramableGate Arrays those function is defined by a binary data that called configuration data. The design concept andadvantages and disadvantages that were introduced by onboard reconfigurable devices are discussed.