Multipath Propagation

Multipath propagation, the phenomenon where signals travel multiple paths to a receiver, significantly impacts the accuracy of various systems relying on signal reception, such as GPS, underwater sonar, and WiFi-based localization. Current research focuses on mitigating multipath's effects using techniques like advanced signal processing (e.g., time-frequency analysis, ray tracing), machine learning models (e.g., deep neural networks, Gaussian processes), and robust channel estimation methods (e.g., least squares). These efforts aim to improve the reliability and accuracy of positioning, object modeling, and person identification in challenging environments, with applications spanning diverse fields from robotics and autonomous navigation to security and environmental monitoring.