Intersystem Interference - Summary 2018-2019


  • Sara Linder
  • Karina Fors
  • Peter Stenumgaard
  • Johan Hedström
  • Patrik Eliardsson
  • Thomas Ranström
  • Erik Axell
  • Fredrik Mörnestedt

Publish date: 2019-12-10

Report number: FOI-R--4832--SE

Pages: 46

Written in: Swedish


  • intersystem interference
  • EMC
  • RF-Oculus


The report summarizes intersystem interference work from parts of 2018 and 2019. The concept of intersystem interference includes negative impact from unintended interference on a radio receiver. Interference can originate from both other transmitters and electrical equipment near the receiver. Military platforms usually consist of a number of electrical equipment and radio systems on a small area, and the risk of intersystem interference is therefore high. The report summarizes: - New functionality in the intersystem interference tool GENESIS. Scenarios can be analyzed in any location, as the map management is more flexible. The presentation of calculation results is improved to enable more detailed analyzes. The ability to handle measurement spectrum measured with different types of detectors has been added and interference sources can be considered either broadband or narrowband, which can affect the performance deterioration of a radio receiver. - Continued development of the portable interference measurement system RFOculus for automatic monitoring of the interference environment where there are also radio transmissions. A method for automatically classifying radio signals has been analyzed. - Effects of interference from solar panels on air traffic control system and shortwave systems. - Sensitivity of 5G technology, specifically sensitivity for narrow band interference on OFDM including technology to reduce performance impact. - Survey of research in the area - interesting material from attended conferences, and summary of the areas Internet of Things, Artificial Intelligence and EMC as well as dynamic spectrum access.