Title :
Non-cooperative Object Detection in Sea Using Acoustic Sensors
Author :
Cheng, Eric Dahai ; Challa, Subhash ; Tang, Xuanchen ; Liu, Xiaohu
Author_Institution :
Victoria Res. Lab., Nat. Inf. & Commun. Technol., VIC, Australia
Abstract :
With the increase of illegal boat arrivals, the border security is becoming more and more important for Australian government. This paper is exploring the early warnings by detecting of boat generated signals received by a hydrophone. We focus on algorithm development and real boat generated signal tests. Our experiments have proved that the developed median CFAR and post integration algorithms are very robust for various different acoustic signals, which have a high detection rate while keeping a low false alarm rate.
Keywords :
acoustic signal detection; fast Fourier transforms; hydrophones; integration; sensors; Australian government; acoustic sensor; acoustic signal; border security; false alarm rate; hydrophone; illegal boat arrival; median CFAR; post integration algorithm; sea noncooperative object detection; Acoustics; Boats; Frequency estimation; Noise; Noise measurement; Time frequency analysis; Acoustic Sensor; Fast Fourier Transform; Median CFAR; Multi-frame Integration;
Conference_Titel :
Digital Image Computing: Techniques and Applications (DICTA), 2010 International Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4244-8816-2
Electronic_ISBN :
978-0-7695-4271-3
DOI :
10.1109/DICTA.2010.58
