document title / titre du document TRP W ORK PLAN ... - emits - ESA

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TRP Work Plan 2005-2007 Description of Activities TEC-SB/7935/dc 12/Feb/09 6.- Generic Technologies and Techniques 6.1 - On-board Data Systems TRP Reference: Title: 03/EDP-001 SMCS 332+SMCS116 upgrade to Spacewire (ECSS-E50-12A) The first generation of high speed digital links controllers is based on the IEEE1355 standard which was the starting point to the definition of SpaceWire networks. They are used in very large number of ESA missions. However, the SMCS332 and SMCS116 devices are not fully compliant with the SpaceWire specification (e.g. they do not support time codes) and are implementing an initialisation state machine that leads to major operational constraints. Furthermore, they suffer from several design anomalies, discovered by first Users but today well characterised (e.g. w.r.t to interfaces in some sub-modes). Considering the situation, it required to upgrade the SMCS332 and SMCS116 to full SpaceWire compliance. This will allow as well to correct the identified anomalies and to secure the availability of such devices by producing them on a more recent silicon process (e.g. migrating from MG1RT to MG2RT). An extensive validation campaign is included in the proposed activity. Deliverables: Breadboard Current TRL: TRL3 Target TRL: TRL5 Application Need/Date: TRL5 by 2007 All missions (first possible application Application/Mission: Contract Duration: might be Cryosat 2) SW Clause : - Dossier0 Ref.: Consistency with Harmonisation Roadmap and Conclusions: 36 months TRP Reference: Title: SMCS 332+SMCS116 upgrade to Spacewire (ECSS-E50-12A): enhancement The first generation of high speed digital links controllers is based on the IEEE1355 standard which was the starting point to the definition of SpaceWire networks. They are used in very large number of ESA missions. However, the SMCS332 and SMCS116 devices are not fully compliant with the SpaceWire specification (e.g. they do not support time codes) and are implementing an initialisation state machine that leads to major operational constraints. Furthermore, they suffer from several design anomalies, discovered by first Users but today well characterised (e.g. w.r.t to interfaces in some sub-modes). Considering the situation, it required to upgrade the SMCS332 and SMCS116 to full SpaceWire compliance. This will allow as well to correct the identified anomalies and to secure the availability of such devices by producing them on a more recent silicon process (e.g. migrating from MG1RT to MG2RT). An extensive validation campaign is included in the proposed activity. Deliverables: Breadboard Current TRL: TRL3 Target TRL: TRL5 Application Need/Date: TRL5 by 2007 Application/Mission: All missions Contract Duration: 36 months SW Clause : - Dossier0 Ref.: Consistency with Harmonisation Roadmap and Conclusions: Conclusions: ESA/IPC(2003)32 Page 119 of 227
TRP Work Plan 2005-2007 Description of Activities TEC-SB/7935/dc 12/Feb/09 TRP Reference: 03/ESD-001 Title: Rf Wireless Intra-Spacecraft Communications - Phase 1 RF wireless techniques are being considered for on board short-range communications in view of the potential mass and power reduction and for the added benefit of increasing functionality and flexibility in S/C design, construction and testing. From recent years, RF wireless systems have known a great development in industrial, offices and home applications and offer a wide spectrum of mature products. The availability of high performance consumer-markets components make today RF an attractive approach for low mass on board-space communications for applications providing that EMC/EMI issues are adequately addressed at system level and shall be thoroughly investigated. This investigation will consider the space environmental aspects, in particular radiation, the spacecraft internal environment (in particular EMC/EMI) as well as the functional and operational aspects as a part of the on board data handling system (control and monitoring telecommand distribution/telemetry acquisition functions). The proposed activity deals with the use of optical wireless techniques for on board communications, and in particular will cover the following technology areas: • Functional and performance specifications for on board RF wireless communications for control, monitoring, command distribution and telemetry acquisition as part of the Spacecraft avionics for a set of typical mission scenarios (platform type, mission profile, orbit) and in line with relevant CCSDS standards • Identification of the most suitable system configuration and architecture for selected applications/scenarios • Identification and selection of commercial/industrial RF wireless communications systems (protocols, components) • Performance/reliability assessment of technology, components and devices • Assessment of Qualification for components and devices • Evaluation and characterization of electronics equipment/component and their interfaces • Selection of a Test application case from the preliminary set of applications scenarios to be used as System demonstrator • Definition of a Flight Test Demonstration based on the above • Preliminary design of the RF wireless communication system • Critical component and subassembly design and developments including mixed digital-analog Asics • Development of Software tools for system analysis optimisation and computer aided design (link budget…) • Development of communication protocol and interface layers for selected configurations, operation and test environment software • Integration and Test of the Elegant bread-board of a complete RF wireless systems for the selected applications • Consolidated technology road map and proposal for a flight demonstration based on the demonstration system. Deliverables: Technical datapackage. Elegant BB. Current TRL: TRL2 Target TRL: TRL3 Ph1. Application Need/Date: TRL5 by 2009 Application/Mission: Contract Duration: SW Clause : - Dossier0 Ref.: T-7756 Consistency with Harmonisation Roadmap and Conclusions: TRP Reference: Title: Rf Wireless Intra-Spacecraft Communications - Phase 2 See Ph1. Description Deliverables: Technical datapackage. Elegant BB. Current TRL: Target TRL: TRL3 TRL3-4 PH2 Application Need/Date: TRL5 by 2009 Application/Mission: Contract Duration: SW Clause : - Dossier0 Ref.: T-7756 Consistency with Harmonisation Roadmap and Conclusions: Page 120 of 227
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