One consequence of the pandemic lockdown . due to Covid-19 has in some cases been a significant decrease of traffic volumes from vehicles. At some borders, the decrease of personal car traffic was significantly reduced during the lockdowns in the spring of 2020. Since vehicles can contribute to the background electromagnetic interference environment, it is of interest to investigate if the pandemic lockdown has led to any observable differences in measured background electromagnetic interference levels. Measurements have been done in the civilian GPS-frequency band in the vicinity of the bridge over Öresund, between Sweden and Denmark. A significant reduced level of electromagnetic interference can be seen as a result of the lockdown in the spring of 2020. Furthermore, these measurement results indicate that passenger cars have the largest contribution to the interference in the GPS-band.
EMC Analysis of Complex Interference Environments
The ongoing technical development . towards increased densities of co-located electronic systems together with new unintentional interference sources requires analyses of considerable more complex interference environments than before. To handle such environments, dedicated analysis tools and methods are needed to handle larger amounts of electronic systems as well as measurement data from emission measurements. In this paper, some of these challenges are discussed and examples of possible analysis methods are shown.
120, 60 och 30 år – några milstolpar inom EMC
EMC-området . kan spåras tillbaka till 1800-talet då man upptäckte att åskväder och blixtnedslag kunde påverka komponenter i kraftledningsnät. Här uppstod därmed ett EMC-problem som orsakades av ett naturfenomen som källa. De första EMC-incidenterna som orsakades av en källa från mänsklig aktivitet kom i slutet av 1800-talet. För 120 år sedan rapporterades för första gången vad vi idag kallar en EMC-incident, och då var det US Navy som börjat använda trådlös telegrafi.
Massive IoT and EMC
Abstract — . The technical development towards the full vision of the Internet of Things (ioT) is expected to reach it´s full potential by the coming 5G wireless technologies. This will open up for so called massive IoT characterized by co-location densities in the order of 200000 devices per km2. This development will affect the area of Electromagnetic Compatibility (EMC) in a number of ways and may even be the most challenging issue for the EMC area since it was born for over 100 years ago. In this paper, some of these new challenges are highlighted and discussed. Furthermore, numerical results from some dense co-location scenarios are presented to show examples of interference challenges to be handled.
Internet of Things: an IT Security Nightmare
Offprint from strategic outlook 7 . .Internet of Things (IoT) is the collective name given to products that contain electronics that have some form of connection to other systems, usually via the Internet. The number of cyberattacks involving IoT devices has increased in recent years. This, combined with a deteriorating security situation, presents a looming risk of major and wider cyberattacks in which IoT devices will be central. Sweden’s national security and system of total defence are built to a great extent on the resilience of critical societal functions. Many of these have Internet-connected systems that are partially based on IoT products, making them vulnerable to cyberattacks. These systems are clear targets for antagonists. To reduce the risk of serious cyberattacks capable of disrupting critical societal functions, Sweden should have a clear strategy on cybersecurity. Sweden should also take an active role in efforts to increase cybersecurity in commercial IoT products.
A survey of the existence of GPS interference in Europe
Introduction . The European Union (EU) Horizon2020 project Standardisation of Global Navigation Satellite System (GNSS) Threat Reporting and Receiver Testing through International Knowledge Exchange, Experimentation and Exploitation (STRIKE3) is a new European initiative to support the increasing use of GNSS within safety, security, governmental and regulated applications. One of the objectives of STRIKE3 is the deployment and operation of an international GNSS interference monitoring network to capture the scale and dynamics of the problem, and to work with international GNSS partners to develop, negotiate, promote and implement standards for threat reporting and receiver testing. Both standards are missing across all civil application domains and are considered a barrier to the wider adoption and success of GNSS in the higher value markets.
Massiv är trenden
I takt med utvecklingen . mot nästa generations trådlösa system, 5G, så har begreppet ”massiv” blivit ledordet. Ordet används som samlingsnamn för att beteckna den massiva ökning av antalet trådlöst uppkopplade enheter som det nya skiftet kommer att innebära. En massiv ökad mängd trådlösa enheter ska bana väg för exempelvis massiv maskin-till-maskin kommunikation och ett massivt Internet of Things (IoT).
EMC Challenges for Wireless Communications in Security & Safety Applications
The use of wireless . technology is increasing rapidly in critical societal functions such as energy production, transport, logistics, banking and financial systems, and industrial and security applications – this despite the fact that civilian consumer wireless technology in general is very sensitive to both unintentional and intentional interference signals. Therefore Electromagnetic Compatibility (EMC) issues are highly important to address. Hitherto only military actors have been able to utilize or take advantage of this sensitivity effectively, but this ability is now spreading to civilian actors, thanks to sophisticated jamming equipment which is now sold openly and inexpensively via the Internet.
What Does the Future Hold for Positioning, Navigation and Timing?
In the past . 30 years, more and more devices have started using the US Global Positioning System (GPS) and related global navigation satellite systems (GNSS). This trend contributed to Europe’s decision to create its own system, Galileo, and this began offering initial services at the end of 2016. As well as Galileo, the Indian Regional Navigation Satellite System (IRNSS) now has a full constellation, and there are rapid developments in several commercial industries. So, 2017 promises to be an interesting year for developments in GNSS. Here are a few of the industry changes we expect to see this year…
Kommer IoT att förändra spektrumstrategier?
Utvecklingen inom . Internet of Things (IoT), där en massiv ökning av trådlös teknik utgör kärnan, förutspås av somliga leda till att nya strategier för användning av frekvensspektrum kommer att krävas. Begreppet ”spectrum crunch” (ungefär ”spektrum-knaprande”) har börjat användas för att beskriva den ökade trängseln inom frekvensband på grund av IoT.