research

Sketch (not to scale) of GNSS sensitivity to atmospheric turbulence in Antarctica. GNSS stations can probe the spatiotemporal distribution of water vapor in the lower atmosphere because water vapor induces a measurable signal propagation delay. Water-vapor distribution is spatially homogeneous for a non-turbulent atmosphere and heterogeneous when the atmosphere is turbulent. (Credit: MIT)

April 17, 2026

GNSS reveals fourfold turbulence during Antarctica’s Ross Ice Shelf melt

By Tracy Cozzens

October 2, 2025

Study: Unlocking superior accuracy with advanced BDS services

By Tracy Cozzens

CMC Electronics is partnering with ÉTS to create the CMC Electronics Industrial Research Chair in Resilient GNSS Navigation. (Image: CNW Group/CMC Electronics)

October 1, 2025

CMC Electronics and ÉTS launch major research chair in resilient aviation navigation

By Tracy Cozzens

Figure 1. Ionospheric total electron content over the United States during the geomagnetic storm at 22:00 UT on May 10, 2024. The map is derived from the Global Positioning System (GPS) signals. The map shows a steep north-south gradient that impacted GPS position accuracy. Adapted from Figure 3d of the paper. (Credit: Authors)

July 8, 2025

Analysis of geomagnetic storm shows need for mitigation during ionospheric disruptions

By Tracy Cozzens

Signal acquisition of Iridium NEXT satellites’ signal in the long baseline positioning scenario. (Credit: Aerospace Information Research Institute)

June 5, 2025

Low-cost antennas power high-precision space-based positioning

By Tracy Cozzens

January 25, 2022

RTK From the Sky tech transforms TerraStar-C PRO service with 3-minute global convergence

By Tracy Cozzens

The University of Stuttgart in Germany is an academic partner. (Photo: Regenscheit, Universität Stuttgart)

December 2, 2021

Orolia Academic Partnership Program to support PNT research

By Tracy Cozzens

November 19, 2020

Hexagon’s ‘RTK from the Sky’ brings instant GNSS accuracy worldwide

By Tracy Cozzens

The Ellipse-N INS/GNSS (Photo: SBG Systems)

October 12, 2020

SBG Systems supports education with inertial navigation technology

By Allison Kral

November 28, 2017

OnTerra offers new version of MapSavvy web map service

By Tracy Cozzens

GNSS reveals fourfold turbulence during Antarctica’s Ross Ice Shelf melt

Study: Unlocking superior accuracy with advanced BDS services

CMC Electronics and ÉTS launch major research chair in resilient aviation navigation

Analysis of geomagnetic storm shows need for mitigation during ionospheric disruptions

Low-cost antennas power high-precision space-based positioning

RTK From the Sky tech transforms TerraStar-C PRO service with 3-minute global convergence

Orolia Academic Partnership Program to support PNT research

Hexagon’s ‘RTK from the Sky’ brings instant GNSS accuracy worldwide

SBG Systems supports education with inertial navigation technology

OnTerra offers new version of MapSavvy web map service

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