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 TRP Reference: 03/ESD-002 Title: Optical Wireless-Intra-Spacecraft Communications - Phase 1 Optical wireless techniques are being considered for on board short-range communications in view of the potential mass and power reduction, EMI immunity, and for the added benefit of increasing functionality and flexibility in S/C design, construction and testing. Recent advances in optical Micro and Nano Technology, the availability of high performance consumer-markets Opto-electronic components make today optical unguided links a feasible valuable approach for low mass, low power, high data-rate on-board space communications. Furthermore, the increasing bandwidth’s requirements for Earth Observation and Telecom payloads, the possibility to handle multi-user configurations, and strict S/C EMI immunity and cross-talk requirements, make optical wireless a very valuable solution to be thoroughly investigated. This investigation will consider the space environmental aspects, in particular radiation (electronics, electro-optics and optics components), the spacecraft internal environment (topology, materials reflectance and absorption) 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 optical 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 optical wireless communications systems (protocols, components) • Performance/reliability assessment of technology, components and devices • Assessment of Qualification for components and devices • Evaluation and characterization of Opto-electronic 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 optical wireless communication system • Critical component and subassembly design and developments such as fast IR repeater • 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 complete optical 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: Optical Wireless-Intra-Spacecraft Communications - Phase 2 Optical wireless techniques are being considered for on board short-range communications in view of the potential mass and power reduction, EMI immunity, and for the added benefit of increasing functionality and flexibility in S/C design, construction and testing. Recent advances in optical Micro and Nano Technology, the availability of high performance consumer-markets Opto-electronic components make today optical unguided links a feasible valuable approach for low mass, low power, high data-rate on-board space communications. Furthermore, the increasing bandwidth’s requirements for Earth Observation and Telecom payloads, the possibility to handle multi-user configurations, and strict S/C EMI immunity and cross-talk requirements, make optical wireless a very valuable solution to be thoroughly investigated. This investigation will consider the space environmental aspects, in particular radiation (electronics, electro-optics and optics components), the spacecraft internal environment (topology, materials reflectance and absorption) 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 optical 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, Page 121 of 227
TRP Work Plan 2005-2007 Description of Activities TEC-SB/7935/dc 12/Feb/09 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 optical wireless communications systems (protocols, components) • Performance/reliability assessment of technology, components and devices • Assessment of Qualification for components and devices • Evaluation and characterization of Opto-electronic 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 optical wireless communication system • Critical component and subassembly design and developments such as fast IR repeater • 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 complete optical 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: Target TRL: TRL3-4 Application Need/Date: TRL3 TRL5 by 2009 (PH2) Application/Mission: Contract Duration: SW Clause : - Dossier0 Ref.: T-7756 Consistency with Harmonisation Roadmap and Conclusions: TRP Reference: 97/WSP01 Title: Fast Transform DSP Coproc Ph. 2 & 3 Floating point data representation is not a requirement for some applications and a performance increase about one order of magnitude w.r.t the ADSP21020 can be achieved by using a fixed-point co-processor. This is particularly true for small block size FFts, FIR filters and transforms in general. A configurable device with multiple parallel ALUs shall be developed in the frame of this activity. The ASIC will be very suitable as a stand alone computing unit for low level processing or as an accelerator when coupled to the ADSP21020. Deliverables: Technical data package. Breadboard. Current TRL: TRL2-3 Target TRL: TRL5/6 Application Need/Date: TRL5/6 by 2008 Application/Mission: RF instruments e.g. SAR, altimeters Contract Duration: 24 months SW Clause : - Dossier0 Ref.: T-7798 Consistency with Harmonisation Roadmap and Conclusions: Page 122 of 227
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