Multistage anti-spoof GPS interference correlator (MAGIC)

With the proliferation of GPS jammers and spoofers, commercial GPS receivers need robust anti-jam (AJ)/anti-spoofing (AS) solutions to ensure the future integrity of precision navigation and timing (PNT) solutions. The AJ/AS challenge is perhaps greatest when confronting the size, weight, power (SWaP) constraints of commercial applications that typically have GPS receivers with single antenna configurations and limited intrinsic AJ/AS capability. This article focuses on a newly developed single antenna AJ/AS solution known as MAGIC. Our approach applies a reduced-rank MMSE based C/A code correlator for single antenna GPS receivers that replaces a standard C/A code correlator for enhanced AJ/AS capability.