ARES-EMC: Advanced system level Radiated Emission analysis and Simulation for EMC
Responsible:
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Start date: 2012-01-01
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Project abstract
The project is funded by the European Space Agency (ESA) and is aimed at the development and validation of prediction models for system-level radiated susceptibility (RS) analysis of spacecraft. In particular, the modeling issues involve field-to-wire coupling problems for cable harnesses having deterministic or random electrical/geometrical parameters.
System-level testing at a late stage in the development cycle of a satellite is often bounded by the availability of adequate test facilities and severe schedule constraints. Therefore, the capacity to trade-off alternative design options and the ability to predict and fix potential problems at early-design stages are innovations of paramount importance for the attainment of system reliability with an efficient utilization of resources. In this framework, the principal benefit from the use of RS prediction models is the attainment of built-in-design compatibility instead of after-the-fact remedial measures that always imply significant costs.
In line with these aims, the objective of the ARES-EMC Project is the development of effective techniques for system-level RS analysis by means of hybrid methods (full-wave solvers and multiconductor transmission line theory). The wiring structures under investigation are those typically employed in the space sector for data transmission.
The developed models focus on the common-mode noise that couples onto cable harness and propagates towards terminal electronic units Factors making the project outcomes a real need for the space engineering of the next future are: (a) the possibility of an early verification of intra-spacecraft EMC among data units; (b) the possibility to drive the EMC-oriented design of units and harness routing in the spacecraft; (c) the availability of a software tool allowing both the Space Agency and satellite contractors to evaluate possible non-conformances by simulating their impacts on satellite and finally (d) the risk reduction related to unexpected events that may occur at the final phase of a space program, when EMC system level tests are performed.
System-level testing at a late stage in the development cycle of a satellite is often bounded by the availability of adequate test facilities and severe schedule constraints. Therefore, the capacity to trade-off alternative design options and the ability to predict and fix potential problems at early-design stages are innovations of paramount importance for the attainment of system reliability with an efficient utilization of resources. In this framework, the principal benefit from the use of RS prediction models is the attainment of built-in-design compatibility instead of after-the-fact remedial measures that always imply significant costs.
In line with these aims, the objective of the ARES-EMC Project is the development of effective techniques for system-level RS analysis by means of hybrid methods (full-wave solvers and multiconductor transmission line theory). The wiring structures under investigation are those typically employed in the space sector for data transmission.
The developed models focus on the common-mode noise that couples onto cable harness and propagates towards terminal electronic units Factors making the project outcomes a real need for the space engineering of the next future are: (a) the possibility of an early verification of intra-spacecraft EMC among data units; (b) the possibility to drive the EMC-oriented design of units and harness routing in the spacecraft; (c) the availability of a software tool allowing both the Space Agency and satellite contractors to evaluate possible non-conformances by simulating their impacts on satellite and finally (d) the risk reduction related to unexpected events that may occur at the final phase of a space program, when EMC system level tests are performed.
Project results
- G. Spadacini and S. A. Pignari, “Numerical assessment of radiated susceptibility of twisted-wire pairs with random nonuniform twisting,” IEEE Trans. Electromagn. Compat., early-access articles, pp. 1-9, Jan. 2013.
- L. Ghislanzoni, F. Grassi, F. Marliani, S. A. Pignari, and G. Spadacini, "Terminal units for experimental assessment of bundles of twisted-wire pairs exposed to external radiation," in Proc. 2012 ESA Workshop on Aerospace EMC, Venezia, Italy, May 21-23, 2012, pp. 1-4.
- S. A. Pignari and G. Spadacini, "Plane-wave coupling to a twisted-wire pair above ground," IEEE Trans. Electromagn. Compat., vol. 53, no. 2, pp. 508-523, May 2011.
- G. Spadacini, S. A. Pignari, and F. Marliani, "Experimental measurement of the response of a twisted-wire pair exposed to a plane-wave field," in Proc. 2011 IEEE Int. Symp. on Electromagn. Compat., Long Beach, CA, USA, Aug. 14-19, 2011, pp. 828-833.
- S. A. Pignari and G. Spadacini, "Influence of twist-pitch random non-uniformity on the radiated immunity of twisted-wire pairs," in Proc. XXX General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS 2011), Istanbul, Turkey, Aug. 13-20, 2011.
- G. Spadacini and S. A. Pignari, "Radiated susceptibility of a twisted-wire pair illuminated by a random plane-wave spectrum," IEICE Trans. on Communications, vol. E93-B, no. 7, pp. 1781-1787, July 2010.
- S. A. Pignari and F. Grassi, "An alternative approach to radiated susceptibility testing of airborne equipment," in Proc. APEMC 2010, Asia-Pacific Int. Symp. on Electromagn. Compat., Beijing, China, April 12-16, 2010, pp. 560-563. ISBN 978-1-4244-5623-9.
