The ADHA (Advanced datahandling Architecture) program is an initiative of the europeanspace Agency (ESA) in collaboration with european industrial partners for the development of a standardized, modular and scalable...
The ADHA (Advanced datahandling Architecture) program is an initiative of the europeanspace Agency (ESA) in collaboration with european industrial partners for the development of a standardized, modular and scalable platform for datahandling and dataprocessing systems, based on inter-operable and interchangeable electronic modules. One of the main constituent parts of an ADHA unit is the On-Board Computer (OBC) module which, along with the standard OBC functions of a satellite, it also implements the role of a System Controller within the ADHA unit. This paper will present an overview of the specifications, functional and software architectures, ADHA unit configurations and the role of the OBC module within an ADHA system.
Following an initiative by the young professionals at the europeanspace Agency, the mission of the Young Professionals Satellite has been created and accepted as a payload on the inaugural flight of Europe’s Ariane ...
Following an initiative by the young professionals at the europeanspace Agency, the mission of the Young Professionals Satellite has been created and accepted as a payload on the inaugural flight of Europe’s Ariane 6 rocket. The On-Board Computer & datahandling Team, which spreads across multiple directorates at the europeanspace Agency, has prepared this paper to showcase the design and the technical challenges of the On-Board Software. The paper describes how the On-Board Computer interfaces and communicates with various subsystems in the spacecraft and provides an insight into how the satellite is functionally tested.
This paper presents the architecture of the datahandling Subsystem of the Meteosat Third Generation Imager satellite (MTG-I), with an emphasis on unique or challenging aspects, as well as an assessment of in-orbit pe...
This paper presents the architecture of the datahandling Subsystem of the Meteosat Third Generation Imager satellite (MTG-I), with an emphasis on unique or challenging aspects, as well as an assessment of in-orbit performance.
Due to physical/power/financial constraints of CubeSats, classical improvements of reliability in area of satellite avionics and data-handling (i.e. redundant subsystems, cross-strapping) are not usually possible. On ...
Due to physical/power/financial constraints of CubeSats, classical improvements of reliability in area of satellite avionics and data-handling (i.e. redundant subsystems, cross-strapping) are not usually possible. On top of that, CubeSat development rarely follows technical standards, and is usually based on COTS solutions additionally questioning reliability *** article proposes the use of concepts implemented usually on "bigger" satellites migrated into the world of CubeSat applications. Those concepts are described in SAVOIR working group, which standardises certain data-handling functionalities expected to be present in "mature" satellite. By applying specific engineering solutions and guidelines, most of the SAVOIR functions can be implemented in CubeSat, therefore increasing the reliability.
In this paper a comprehensive overview about State-of-the-Art space-Grade FPGA and SoC-FPGA platforms from AMD, Microchip, NanoXlore and Frontgrade is presented. To this end, a resource-optimized LEON3 soft-core proce...
In this paper a comprehensive overview about State-of-the-Art space-Grade FPGA and SoC-FPGA platforms from AMD, Microchip, NanoXlore and Frontgrade is presented. To this end, a resource-optimized LEON3 soft-core processor system is taken into account as a core design. For evaluation, resource utilization, achievable operating frequency, power consumption as well as radiation performance are taken into account. The results clearly point out the strengths and weaknesses of all space-grade FPGAs selected as well as it helps in the assessment and selection of the optimal candidate for upcoming space applications.
A customed designed fault-tolerant high-performance microprocessor optimized for safety critical missions is presented. The multicore microprocessor implements the RISC-V ISA. Long-term radiation assessment for the 28...
A customed designed fault-tolerant high-performance microprocessor optimized for safety critical missions is presented. The multicore microprocessor implements the RISC-V ISA. Long-term radiation assessment for the 28-nm FD-SOI technology was conducted to guide the design phase.
Increasing the on-board processing capabilities of satellites can lead to faster and more efficient instrument data analysis, improved accuracy, reduced costs, reduced latency and increased autonomy. These benefits ca...
Increasing the on-board processing capabilities of satellites can lead to faster and more efficient instrument data analysis, improved accuracy, reduced costs, reduced latency and increased autonomy. These benefits can help to improve the scientific and operational capabilities of satellites across a wide range of applications, including Earth observation, navigation, and communications. In 2019, the On-Board Computer and datahandling Systems section of the europeanspace Agency (TEC-EDD) in collaboration with several ESA Research and Development offices (Future EO, DPTD, TDE, GSTP), started the definition with all european industry of an Advanced datahandling Architecture (ADHA) based on units containing standardised, interchangeable and inter-operable electronics modules. The main objectives of this paper are to present ADHA, its flexibility and how it can be used as an agile platform to build new and more power full datahandling and dataprocessing Systems on-board satellites. As technology advances and new applications emerge, we can expect to see exciting ADHA developments having the potential to significantly enhance the capabilities of on-board satellites systems.
Within the scope of an ESA funded activity, Airbus Defence and space GmbH completed a research and development study in order to provide a novel dataset to ESA and develop a flight-ready system for on-board anomaly de...
Within the scope of an ESA funded activity, Airbus Defence and space GmbH completed a research and development study in order to provide a novel dataset to ESA and develop a flight-ready system for on-board anomaly detection. This work includes the extraction of satellite telemetry data, the identification of anomalies, the development of machine learning models and the flight-ready system and finally the deployment of the machine learning algorithms via hardware acceleration. We present the benchmarking results of three accelerated ML algorithms from within the final flight-ready system.
Within the framework of a phase A study for CNES of SMOS-HR (Soil Moisture and Ocean Salinity High Resolution) mission, Airbus Defence and space has performed an architecture and feasibility study for the implementati...
Within the framework of a phase A study for CNES of SMOS-HR (Soil Moisture and Ocean Salinity High Resolution) mission, Airbus Defence and space has performed an architecture and feasibility study for the implementation of the correlator function. Due to the very large number of antennas and relatively large bandwidth, the processing power for the matrix correlation is massive with more than 7500 GMAC per second. An implementation in KU060 FPGA and VERSAL ACAP VC1902 has been performed and performance metrics have been analysed. For both implementations, bottlenecks have been identified and an optimised architecture proposed.
Frequency stacking in the analog domain is used to replace multiple narrowband ADCs with a wideband ADC, supporting multiple antenna elements for digital satellite beamforming. This analog front end provides a cost-ef...
Frequency stacking in the analog domain is used to replace multiple narrowband ADCs with a wideband ADC, supporting multiple antenna elements for digital satellite beamforming. This analog front end provides a cost-effective solution by offering a common broadband digital interface to the onboard processor, which can be configured for multiple satellite missions. This paper is on specifying the prototype filters to analyse frequency-stacked mobile sub-bands in the digital domain. The paper further presents results and observations that demonstrates the effectiveness of this specification for a given mobile narrowband communication scenario. Index Terms—Satellite Communication Systems, Digital Signal processing, Analog-to-Digital Convertor.
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