Di Qui's article on geoencryption with Loran, presented with co-authors Sherman Lo and Per Enge in this issue, represents to my knowledge the first article ever published in diis magazine that is not about GPS or some other GNSS. Nor does it treat the integration, tight, loose, or middling, of another technology, sensor, or communication medium with a GNSS receiver. It mentions GPS barely in passing, and then for what that system does not or cannot do.
展开▼
