Navigation via Signals of Opportunity (NAVSOP)

NAVSOP, developed by BAE (British Aerospace Marconi Electronic Systems), the new physical positioning tool could rival the GPS ..

The technology which depends on many signals coming from radio, TV, mobile and wi-fi, rather than just the three signals coming from GPS satellites 22,000 kms above the earth, is supposed to be more accurate and less liable for disruption, jamming and spoofing ..

http://www.computerweekly.com/news/2240158965/BAE-Systems-claims-Navsop-technology-could-replace-GPS

Our dependence on GPS satellites will come down and perhaps we will be better directed by signals coming from other devices ..

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