Magazine Department Archives - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

Magazine Department

September 21, 2019

Detecting and Geolocating Jammers and Spoofers Using Integrated AOA and TDOA Measurements

by Joon Wayn Cheong, Andrew G. Dempster, Joe Fleming, Ming Zhu & Graeme Hooper

Due to the proliferation of personal privacy devices and other jamming sources, it is imperative for safety-critical GNSS users such as airports and marine ports to be situationally aware of local GNSS interference. This article proposes and validates an enhanced method for geolocating GNSS interference sources so that jammers and spoofers can be found and disabled.

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By Inside GNSS
September 19, 2019

GNSS Transceiver: Simulation Accuracy Assessment of Using a Vector-Tracking Receiver as RF Constellation Simulator

In this article, the authors use a vector tracking approach to convert a software receiver into a software transceiver, showing that this effort is both feasible and easily realized. The basic concept is presented with an accuracy assessment of the error sources and generated signal quality is compared to theoretical lower limits.

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By Daniel S. Maier and Prof. Thomas Pany
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September 18, 2019

GNSS & The Law: Collecting and Processing Geolocation Data


Geographical information plays a permanently increasing role in our society. More and more devices and applications use and process geographical information to serve all kinds of purposes. Smartphones, cars, e-bikes, scooters or foot shackles for law enforcement purposes collect and process geographical information on a permanent basis. Here, we take a close look at privacy issues and the data protection perspective, namely considering the European GDPR and experiences gained one year after its entry into effect.

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By Dr. Philip Lüghausen and Dr. Matthias Lachenmann

Human Engineering: Ivan Revnivykh

Ivan Revnivykh’s life and experience encompass the far frontiers of his homeland, Russia, from the magnificent landscapes of the country’s Pacific coast to research stations in Antarctica, to the great capital city of Moscow where he lives and works today. To everything he does he brings a sense of excitement and adventure.

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By Peter Gutierrez
September 26, 2018

DHS Taking a Risk-Based Look at PNT Resilience

The Department of Homeland Security (DHS) has launched a new effort to ascertain the real-world risks posed by the loss of positioning, navigation and timing (PNT) service and how those risks might be reduced, said James Platt, director of DHS’s PNT Program Management Office. On the table is testing, best practices, partnerships, a new management approach and possibly standards and a backup system.

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By Dee Ann Divis
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June 15, 2018

GNSS IoT Positioning: From Conventional Sensors to a Cloud-Based Solution

The advent of the Internet of Things (IoT) has considerably increased the number of services and applications that require positioning information. In this sense, IoT positioning sensors usually obtain and deliver their position to a central node where it is further managed and analyzed by a user or scheduler. Nonetheless, the stringent requirements of low-cost IoT sensors in terms of low power consumption to achieve larger battery lifetime are pushing current technologies to their limits.

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By Inside GNSS
June 12, 2018

The Cospas-Sarsat MEOSAR System: A Solution to Support ICAO GADSS Autonomous Distress Tracking Recommendation

Today, it appears that the Cospas-Sarsat MEOSAR system, relying on payloads deployed on GNSS constellations (Galileo, GPS, GLONASS), offers all the conditions to meet the new recommendation of ICAO for ADT-system for Commercial Aviation, with a new generation of in-flight triggered beacons, identical to the current ELT in terms of aircraft integration, but capable of receiving triggers and cancellation events from the avionics, from the crew or from internal sensors, and of detecting and managing their inhibitions to maintain the capability to raise alerts and be localized in any situation.

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By Inside GNSS
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