AN AUTONOMOUS SURVEILLANCE SYSTEM FOR BLIND SOURCES LOCALIZATION AND SEPARATION

摘要

A sound monitoring system provides autonomous and silent)) surveillance to monitor sound sources stationary or moving in 3D space and a blind separation of target acoustic signals. The underlying principle of this technology is a hybrid approach that uses: 1) passive sonic detection and ranging method that consists of iterative triangulation and redundant checking to locate the Cartesian coordinates of arbitrary sound sources in 3D space, 2) advanced signal processing to sanitize the measured data and enhance signal to noise ratio, and 3) short-time source localization and separation to extract the target acoustic signals from the directly measured mixed ones.