ok, as i know there are several possibilities to jam GPS:
first: a traditional jammer emitting noise in the frequencies used by GPS
Disandvantage: powerfull emitters are easy to detect and can be destroyed. also the receivers of gps-guided weapons are screened against signals coming from the ground.
second: a gps-faker. sound interesting, a sytem the emits a modified GSP-signal. if the receiver uses this fake signal to calculate the position, it will be misguided. this system uses only low-power emissions, hard to detect.
will the described system of a GPS-faker work???
if yes, could it also work if somebody launches a satellite with such an emitter to disable GPS worldwide?
or will the faked signals be ignored since they use an different PRN-code?
are there other possibilities to jam gps?
an last but not least what are counter-countermeasures to keep GPS working?
first: a traditional jammer emitting noise in the frequencies used by GPS
Disandvantage: powerfull emitters are easy to detect and can be destroyed. also the receivers of gps-guided weapons are screened against signals coming from the ground.
second: a gps-faker. sound interesting, a sytem the emits a modified GSP-signal. if the receiver uses this fake signal to calculate the position, it will be misguided. this system uses only low-power emissions, hard to detect.
will the described system of a GPS-faker work???
if yes, could it also work if somebody launches a satellite with such an emitter to disable GPS worldwide?
or will the faked signals be ignored since they use an different PRN-code?
are there other possibilities to jam gps?
an last but not least what are counter-countermeasures to keep GPS working?
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