A new system have been developed to protect military vehicles from GPS
jamming by using already existing radio waves to locate rather than
relying on GPS satellite signals. The system uses cell phone, Wi-Fi, and
TV signals to locate a person or a vehicle but can even use GPS jamming
signals to correctly get a position fix.
Known as NAVSOP, this technology scavenges radio
signals from the air and can work indoors or even underground where
wimpy GPS satellite signals can’t reach. This technology could replace
GPS in the future.