Impact and Detection of GPS Spoofing and Countermeasures against Spoofing

As GPS signals are weak broad casted signal over wireless channels therefore they are vulnerable to in-band interference. Even a low power interference can spoof the GPS, which can cause destruction. Because of the above discussed reasons spoofing and anti-spoofing techniques are the emerging issues of the field of GPS. Generally, the spoofer try to generate or mimic the actual GPS signals to mislead a GPS receiver and spoofing works since the targeted receiver is not aware of it. Spoofing is becoming easier and cheaper because of advancement in SDR (software defined receiver) technology.