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The GPS system may be an exception to the purity argument. The only GPS degredations that I'm aware of were intentional. The US military is heavily dependent
by kovar 16y ago
The GPS system may be an exception to the purity argument.
The only GPS degredations that I'm aware of were intentional.
The US military is heavily dependent on the GPS system for everything from weapons delivery to route finding to station keeping, to .... The system is probably one of the most fault tolerant and well maintained systems in existence today.
- EliRivers 16y ago"The only GPS degredations that I'm aware of were intentional." Yes, it has to be intentionally spoofed or jammed. However, there are bad people in the world who intentionally do bad things. This can be done with surprisingly little knowledge and ability, and such devices are commercially available. The GPS system is fine; the problem is that anyone can flick a switch and mess with it. The US military does not have some kind of magic device to stop that happening. "The GPS system may be an exception to the purity argument." It is very definitely not. With one device I can mess with everyone's nav system, if everyone uses GPS. If there was a mix of systems being used; GPS, Galileo, GLONASS, the forthcoming COMPASS, the regional Beidou and other such regional systems, LORAN and eLORAN ground-based systems, inertial navigation systems (Which aren't brilliant but are getting better) and various other options, I will have a much, much harder time of messing with everyone's navigation.