The computation of co-site interference in crowded electromagnetic environments

Document Type : Original Article

Author

Associate Professor, Malek Ashtar University of Technology, Tehran, Iran

Abstract

In this paper the co-site interference in systems involving multiple radios has been studied. This type of interference occurs when a receiver is receiving a weak transmitting signal in the presence of transmitters or even high power jammers. The components of this interference include the power spectrum of the transmitter outputs, the electromagnetic coupling between the antennas, the level of sensitivity of the receiver and the possible intermodulations between different frequencies in the co-location system. The frequency and amplitude of interference at the input of receivers are calculated and reported by a software provided in MATLAB environment. In this software, the radio transmitters and receivers and their antennas can be modeled based on factory information, simulations and measurements.

Keywords

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References

[1]     T. Baldwin and G. Capraro, “Instrasystem Electromagnetic Compatibility Program (IEMCAP)”, IEEE Trans. EMC, vol. 22, pp. 224-228, 1980.
[2]   A. Drozd, A. Pesta, D. Weiner, P. Varshney, and 
I. Demirkiran, “Application and Demonstration of a Knowledge-based Approach to Interference Rejection for EMC,” IEEE Int. Sym. on EMC, pp. 537 –542, 1998.
[3]  PIE Version 3.3 Prediction of Intrasystem Electromagnetic Interference: User’s Manual and Final Report, Naval Air Warfare Center Contract No. N00421-99-D-1433, 2000.
[4]     S. Karlsson, M. Grenvall, Å. Kvick, L. Eugensson, F. Grahn, and L. Pettersson, “Co-site Interference Analysis and Antenna System Integration on a Swedish Combat Vehicle Platform,”  MILCOM     IEEE Military Communications Conference,  pp.  369-374, 2013.
[5]     Keysight Technologies, Keysight Technologies, [Online], 2016. Available: http://www.keysight.com
[6]     Efield AB, [Online]. Available: http:// www. efieldsolutions.com.
[7]     GEMACS , “GEMACS Electromagnetic,” [Online]. Available: http://www.gemacs.com/
[8]     Applied Simulation Technology, [Online]. Available: http://www.apsimtech.com
[9]     http://www.malinsmarine.com/Entertainment/189.htm
[10]  https://www.cojot.com/wp-content/uploads/ 2018/05/COJOT_ATA3090M_V0.3w.pdf
[11]  https://www.rohde-schwarz.com/us/product /hk014-productstartpage_63493-9060.html
[12]  https://www.passion-radio.com/vhf-uhf/ mc101-953. html
[13]  https://www.cobham.com/media/655047/Air%20Communication%20Reference%20Table.pdf
[14]  G. Gonzalez, “Microwave Transistor Amplifiers” 2nd edition, Prentice Hall, 1997.
[15]  J. Gavan, “Analysis of Intermodulation Between Broadband Frequency Transmitters on Mobile Radio Networks,” Proc. Int. Symp. EMC. (Santa Clara, CA), pp. 23-30, 1982.

[16]  H. E. Lobaugh  and  R. ‌‌Schulz, “Broad Spectrum and Intermodulation Characteristics of Communication Transmitters,” Proc. IEEE Int. Symp. EMC (Boulder, CO), pp.199-203. 1981
[17]  https://scdn.rohdeschwarz.com/ur/pws/dl_downloads/ dl_common_library/dl_brochures_and_datasheets/pdf_1/M3TR_bro_en_5213-9228-12_v0700_120dpi.pdf
[18]  ETSI (European Telecommunications Standards Institute), 2018.
[19]  TIA/ANSI (Telecommunications Industry Association Standard), 2015.
[20]  MIL-STD-188/141A, Department of Defense Interface Standard: Interoperability and Performance Standards  for Medium and High Frequency Radio Systems, 2003.
[21]  MIL-STD-188/242, Department of Defense Interface Standard: Interoperability and Performance  Standards  for Tactical Single Channel Very High Frequency, 2003.

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History

  • Receive Date: 03 October 2020
  • Revise Date: 06 September 2021
  • Accept Date: 05 February 2022
  • Publish Date: 21 March 2022

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