Document Type : Scientific extension

Author

Assistant Professor, Aerospace Research Institute, Ministry of Science, Research, and Technology.Tehran.Iran

Abstract

Electromagnetic compatibility (EMC) is an important subject in electronics and communications. The proper performance of a system is very much dependent on meeting EMC requirements. This is more important in space systems. In this paper, the first part of a two-part text about EMC in space systems is presented. The importance of the subject and the necessity to take the EMC considerations into account from the very beginning phases of the system design is discussed. The three main EMC subject areas: sources of noise, noise transfer paths, and immunity methods are mentioned. The most important global military and space EMC standards are presented. System level actions and design considerations are also mentioned. Theses include: grounding methods, shielding and related topics, such as shielding effectiveness, shield resonance, absorbers, EMC gaskets and issues regarding wirings, cables, and connectors. 

Keywords

 
[1]      Leach, R.D. and Alexander, M.B., “Electronic Systems Failures and Anomalies Attributed to Electromagnetic Interference”, NASA Reference Publication 1374, July 1995.
[2]      Harland, D.M. and Lorenz, R.D., Space Systems Failures: Disasters and Rescues of Satellites, Rockets and Space Probes, Springer Praxis, 2005.
[6]      Pierce Jr., J.D., “Electromagnetic Compatibility (EMC) Requirements for Military and Commercial Equipment”, M.Sc. Thesis, Naval Postgraduate School, Monterey, California, 2009.
[7]      Military Standard, Electromagnetic Compatibility Requirements for Space Systems, MIL-STD-1541A, 1987.
[8]      Military Standard, Electromagnetic Compatibility and Grounding Requirements for Space System Facilities, MIL-STD-1542B, 1991.
[9]      Space and Missile Systems Center Standard, Electromagnetic Compatability Requirements for Space Equipment and Systems, SMC Standard SMC-S-008, 2008.
[10]   Standard, Electromagnetic Compatibility Requirements for Space Equipment and Systems,AIAA S-121A-2017, 2017.
[11]   ESA Requirements and Standards Division, Space Engineering, Electromagnetic Compatibility, ECSS-E-ST-20-07C, Rev. 1, 2012.
[12]   Engineering Practice Study, Results Of Detailed Comparisons of Individual EMC Requirements and Test ProceduresDelineated in Major National and International Commercial Standards with Military Standard MIL-STD-461E, DoD/Industry Electromagnetic Environmental Effects Standards Committee, 2001.
[13]   Space Engineering Electromagnetic Compatibility Handbook, ECSS-E-HB-20-07A, European Cooperation for Space Standardization, Noordwijk, Netherlands, 2012.
[14]   Electrical Grounding Architecture for Unmanned Spacecraft, NASA-HDBK-4001, Feb 17, NASA Stennis Space Center, Saint Louis, 1998.
[15]   Armstrong, K. “Design Techniques for EMC–Part 4: Shielding”, EMC Compliance Journal, avialeble at: http://www.compliance-club.com/archive/old_archive/990810.htm,  2006-2009.
[16]   Williams, T., “EMC for Product Designers: Fifth Ed.”, Newnes, Elsevier, Boston, 2017.
[17]   Ott, H.W., Electromagnetic Compatibility Engineering, John Wiley & Sons, N ew York, 2009.