Image: GPS World

About H. Stewart Cobb

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H. Stewart Cobb is the principal hardware architect for Satelles. Dr. Cobb has made a diverse range of contributions to the PNT community, including inventing and delivering the first commercial implementation of pseudolites as a principal hardware engineer at Novariant.

Posts by H. Stewart Cobb

Innovation: Navigation from LEO Posted on 30 Jun 2017 in the Featured Stories & From the Magazine & GNSS & Innovation categories.

Current Capability and Future Promise
GPS signals are so weak, they cannot be used reliably where they are obstructed such as indoors or in concrete canyons. But if the satellites were much closer, their signals would be much stronger. The low Earth orbit Iridium constellation is already orbiting, and providing a PNT service. This month we learn about its current capability and future promise. Read more»