PASSIVE RANGING WITH FOUR MICROPHONES IN A SPATIAL CONFIGURATION
Nico Roosnek · INTER-NOISE 2001 - ABSTRACTS FROM INTERNATIONAL CONGRESS AND EXHIBITION ON NOISE CONTROL ENGINEERING · 2001
For high precision aircraft noise measurements a system has been developed with highly accurate tracking capabilities, based on correlation and nonlinear least square optimization. History and the state equation have been taken into account resulting in an extended Kalman filter optimization procedure. The accuracy is so high that passive ranging is possible for moving and stationary objects, with an error depending on distance, velocity and environmental parameters. The sensitivity towards the environmental parameters will not be treated. (A) For the covering abstract see ITRD E113232.