ADC-Bank: Detecting Acoustic Out-of-Band Signal Injection on Inertial Sensors

Jianyi Zhang, Yuchen Wang, Yazhou Tu, Sara Rampazzi, Zhiqiang Lin, Insup Lee, Xiali Hei

Abstract: Inertial sensors are widely used in navigation, motion tracking, and gesture recognition systems. However, these sensors are vulnerable to spoofing attacks, where an attacker injects a carefully designed acoustic signal to trick the sensor readings. Traditional approaches to detecting and mitigating attacks rely on module redundancy, i.e., adding multiple sensor modules to increase robustness. However, this approach is not always feasible due to the limited space and increased complexity of current printed circuit boards.