GPS Spoofing Attack Simulator

Satellite navigation receivers trust every signal that arrives on the right frequency with the right code — they have no built-in way to tell a genuine satellite from a ground-based impostor broadcasting louder. This simulation models a GPS spoofing attack in real time: a constellation of satellites feeds honest pseudoranges to a moving receiver, which solves for its own position with a least-squares fit every frame. Switch on the rogue transmitter and watch it out-power individual satellite links, injecting a slowly growing false distance that walks the receiver's computed fix away from where it actually is — while the residual and RAIM alarm show the one signature a spoofed fix usually leaves behind.