Inside GNSS Media & Research

MAR-APR 2018

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36 InsideGNSS M A R C H / A P R I L 2 0 1 8 www.insidegnss.com WEBINAR RECAP » INTERFERENCE DETECTION AND MITIGATION sponsored by NOVATEL » APPLYING GNSS INTERFERENCE DETECTION INSIDE AND OUT G NSS provides tremendous positioning and timing ca- pabilities and today, more than ever, the number of users and applications is continuously expanding. But these wonderful services provided by GNSS which have become a big part of our everyday lives can still be vulnerable to interference—both intentional and uninten- tional. Because of this, it is critical in today's environment to be able to identify GNSS interference, and to be able to mitigate interference effectively once it has been verified. In the recent webinar, "Applying GNSS Interference Detection Inside and Out," presented by Inside GNSS, Inside Unmanned Systems and NovAtel®, all types of interference are addressed along with the solutions that are now available in the Interference Toolkit (ITK), from NovAtel. The webinar moderator is James O. Poss, Maj Gen (RET) USAF, CEO ISR Ideas, an intelligence, unmanned aerial systems and cyber consulting firm. Joining Poss on the panel are subject matter experts Sandy Kennedy, Chief Engineer of Receiver Cards, NovAtel, Paul Alves, Principal Research Engineer, Applied Research Team, NovAtel, and John Schleppe, Engineering Fellow and Manager of Research, NovAtel. "With increased performance expectations and more difficult environments in general, there's no free pass for performance because people expect GNSS to just work everywhere," said Kennedy, whose presentation includes details on NovAtel's Interference Toolkit, available now with all of the company's OEM7® receivers. "What they (users) are used to and what their perception is, we need to make it a reality." Signal strength and clarity is the challenge that all GNSS receivers face, especially in today's current environment where everyone is trying to take advantage of the RF spectrum. The where and why of interference–intentional or not–typically requires expensive and cumbersome spectrum analysis equipment, the logging of interfer- ence raw data, and/or extensive post-processing. by Stan Goff The circled lines are non-GNSS signals that you can see have made it into the passband. ITK works to remove those unwanted signals, as you can see in the blue line. This blue line depicts interference mitigated. These 2 lines depict interference detected. These 2 lines depict clean results. Post processed ITK DATA VISUALIZED. WIDEBAND PASSBAND POST FILTER

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