The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
JUpiter ICy moons Explorer (JUICE) is the first ESA large-class mission aiming at the exploration of Jupiter and three of its largest moons, Ganymede, Callisto and Europa. The JUICE payload suite counts 10 instruments, 9 of which are interfaced with the On-Board Computer (OBC) and Solid State Mass Memory (SSMM) using a SpaceWire (SpW) network both for science data and command & control traffic...
This paper presents the architecture, functionality, and performance of the SpW Interface Node IP which constitutes a configurable IP Core from which non-SpW experts can tailor a customized SpW interface for integration into their developments. The IP core offers numerous configurability options and is also expandable to include additional blocks as the SpW protocol family evolves.
The AIT/AIV spacecraft test campaign undergoes an electrical verification program for all the units and instruments. The SpaceWire standard calls for LVDS signals in the physical layer and these are considered critical because the present LVDS technology is capable to drive signals up to 400 Mbit/s with low common mode voltage. Reliable SpaceWire communication can be difficult in the presence of induced...
The GR718B is a radiation tolerant 18-port, standalone, SpaceWire router developed by Cobham Gaisler AB for space applications. The validation of the most critical design blocks of the SpaceWire router with respect to Single Event Effects, when operated at high frequencies, is reported herein. In addition, the insensitivity of the design library used for the development of this device to Single Event...
This paper presents a novel methodology that allows a systematic availability analysis of satellite payload data processing systems implemented on static random-access memory-based field-programmable gate arrays. The methodology allows 1) comparison of different fault detection, isolation, and recovery schemes and 2) prediction of the expected system availability in a particular radiation environment...
The SpaceWire standards are maintained and issued formally as ECSS documents (e.g. ECSS-E-ST-50-12C) and this means that equipment designed by different agencies is interoperable, which has significant benefits.
This paper is concerned with a novel Fault Detection, Isolation and Recovery (FDIR) methodology for multi-Field-Programmable Gate Array (FPGA) systems. It features an embedded hardware platform, which supports adaptive redundancy whereby redundant processor instances can be distributed over multiple FPGA devices. This is achieved by utilising a Network-on-Chip (NoC), which is heavily based on SpaceWire.
Prototype connectors have been developed by Smiths Connectors (Hypertac) for backplane applications, and testing has been performed by TASUK under ESA contract.
In this paper, a novel voter design is presented which allows the voting of asynchronous network streams in flow-controlled networks. The voter synchronises incoming data streams automatically and is able to handle failure modes that typically occur in streaming applications. The voter degrades to a comparator if one of the redundant channels has failed and reintegrates the channels once they are...
In this paper, a Fault Detection, Isolation and Recovery approach to SRAM-based FPGAs in payload data processing applications on-board spacecraft is presented. The approach is able to support different reliability requirements through on-line configuration of the target system adapting it to new constraints in terms of reliability and power consumption. The core of the approach is a novel Distributed...
Reconfigurable hardware is gaining a steadily growing interest in the domain of space applications. The ability to reconfigure the information processing infrastructure at runtime together with the high computational power of today's FPGA architectures at relatively low power makes these devices interesting candidates for data processing in space applications. Partial dynamic reconfiguration of FPGAs...
State of the art radiation tolerant SRAM-based FPGAs with large gate count offer powerful processing capability among devices qualified for space applications. Due to changing mission requirements the processing in a space instrument needs to be adaptable. Modern SRAM-based FPGAs can be partially and dynamically reconfigured and thereby offer a method of adaptability. To provide a flexible communication...
Embedded devices used in the space industry have to face stringent requirements imposed by their deployment environment, namely high reliability, limited resources, and challenges in heat dissipation. In addition, to make matters worse, the demand for advanced processing capability is growing steadily to meet future exploration and deep space mission requirements. At the European Space Agency, ongoing...
Instruments on spacecrafts or even complete payload data handling units are typically controlled by a dedicated data processing unit. This data processing unit exercises control of subsystems and telecommand processing as well as processing of acquired science data. With increasing detector resolutions and measurement speeds the processing demands are rising rapidly. To fulfill these increasing demands...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.