In order to overcome the challenges that an anisotropic noise field poses for underwater target tracking, we conduct an onboard estimation of the horizontal noise directionality in the real-time processing suite of an autonomous underwater vehicle (AUV) towing a horizontal line array. The estimation of the noise directionality is a precursor to another adaptive behavior: optimizing tracking capability of a towed array by choosing a particular heading that minimizes the detection level in the target's direction. In each distinct simulated anisotropic noise field, the AUV successfully calculates the optimal towed array headings based on the real-time estimation of the horizontal noise directionality. The findings reveal a clear advantage over the conventional broadside beam tracking method, with some limitations due predominantly to the noise field itself.
Target Tracking Onboard an Autonomous Underwater Vehicle: Determining Optimal Towed Array Heading in an Anisotropic Noise Field
2007
110 pages
Report
No indication
English
Marine Engineering , Military Sciences , Antisubmarine Warfare , Underwater targets , Underwater tracking , Towed arrays , Underwater vehicles , Acoustic fields , Noise(Sound) , Onboard , Real time , Detection , Simulation , Anisotropy , Autonomous underwater vehicles , Anisotropic noise field , Target tracking , Auv(Autonomous underwater vehicle)
DSpace@MIT | 2007
|Autonomous Underwater Towed Vehicle with Various Navigation Modes
British Library Conference Proceedings | 2006
|Multiple-Target Tracking for Towed Array Sonars
British Library Conference Proceedings | 2013
|