September 1992. One of the first industrial uses of GPS came in survey and seismic exploration for offshore oil, as evidenced by the cover story of this magazine’s September 1992 issue. A salient pa...
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A team of Swiss researchers is using data from a network of GPS receivers and the technique of tomography to obtain profiles of how moisture is distributed with height, which might lead to better weat...
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By Jürgen Rossmann, Petra Krahwinkler, and Markus Emde Modern machines such as wood harvesters can automatically cut trees and remove branches, but an expert is still needed to plan a thinning and t...
Read More →A range of unrelated events in September show that GPS, the world’s preeminent GNSS, remains a work in progress. The first in a series of deviations from normal GPS signal broadcasts during Septembe...
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A portable spoofer implemented on a digital signal processor mounts a spoofing attack, characterizes spoofing effects, and suggests possible defense tactics. GNSS users and receiver manufacturers shou...
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