For decades, global soil moisture monitoring from space has depended on reference datasets. Satellite observations, while indispensable, are rarely used alone; instead, their retrieval algorithms are ...

No audio available for this content. Data shows how successful baseline validation testing of Spirent’s inertial simulation model as compared to real world inertial system performance. Photo: Spirent ...

Yet despite this reliance, GNSS remains inherently fragile: low‑power signals transmitted from medium Earth orbit are surprisingly easy to degrade, and the consequences of disruption can be severe.

Bridges endure constant environmental and operational stresses—some visible, others imperceptible. This study introduces an innovative Global Navigation Satellite System (GNSS)-based system that ...

An official evaluation of Advanced RAIM (ARAIM), a GPS technique used in aviation receivers for safer landings and take-offs, is being conducted by the William J. Hughes Technical Center (WJHTC) of ...

As airlines halt flights and detour around conflict zones, operational ripples can be subtle—but far-reaching.

Partnership Unites GPR With Positioning. Topcon Positioning Systems and Geophysical Survey Systems, Inc. (GSSI) have formed a collaboration ...

SimXTRACT reshapes GNSS evaluation by channeling real-world intelligence, streamlining workflows and accelerating product development. GNSS, or, ...

A research team led by Southeast University has developed a cutting-edge GNSS-based method to monitor both displacement and attitude of long-span bridges with remarkable accuracy. Published (DOI: ...