When Israel was waiting for a retaliatory strike from Iran they jammed GPS in the region. I never found a clear explanation of how it was done technically, this would make total sense if their system also was targeting atomic clock signals rather than GPS itself to confuse incoming missiles or aircraft.
That does raise an interesting question though - do missles actually depend on the standard atomic clock signals? Maybe that isn't how they did it, that seems like a dependency you wouldn't want in a weapon.
That does raise an interesting question though - do missles actually depend on the standard atomic clock signals? Maybe that isn't how they did it, that seems like a dependency you wouldn't want in a weapon.