About David Whelan

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David Whelan was the vice president and chief technologist for Boeing Defense, Space & Security. Whelan earned his Ph.D. and MS in physics from the University of California Los Angeles and his B.A. from the University of California San Diego.

Posts by David Whelan

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»