Unmanned Aerial Vehicles (UAVs) increasingly rely on wireless guidance and control links which are vulnerable to spoofing and false command injection attacks. Conventional protection mechanisms primarily rely on cryptographic authentication, which may not be sufficient under compromised or replay-based attack scenarios. This paper proposes a physics-informed, wind-aware angle-of-arrival (AoA) consistency validation framework for real-time rejection of spoofed guidance signals. The proposed method exploits geometric consistency between the expected line-of-sight (LOS) direction to a legitimate guidance transmitter and the measured signal bearing at the UAV. The expected bearing is computed fr... More >