Covariance-Robust Dynamic Watermarking

Understand

Attack detection and mitigation strategies for cyberphysical systems (CPS) are an active area of research, and researchers have developed a variety of attack-detection tools such as dynamic watermarking.

• However, such methods often make assumptions that are difficult to guarantee, such as exact knowledge of the distribution of measurement noise.
• Here, we develop a new dynamic watermarking method that we call covariance-robust dynamic watermarking, which is able to handle uncertainties in the covariance of measurement noise.
• Specifically, we consider two cases.