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Sonar based automatic target detection scheme for underwater environments using CFAR techniques: a comparative study

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2 Author(s)
B. Kalyan ; Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore ; A. Balasuriya

A sonar detection scheme is presented using Constant False Alarm Rate (CFAR) techniques. The proposed system has the following advantage. The technique yields unbiased estimates under a non-homogenous underwater environment, because the false alarm rate is maintained at a constant level while the threshold changes with different underwater environments in the presence of interfering targets. A mathematical analysis is also being done for different CFAR processors with the interest on the CFAR losses. Average decision threshold (ADT) is used as a measure.

Published in:

Underwater Technology, 2004. UT '04. 2004 International Symposium on

Date of Conference:

20-23 April 2004