Title :
Stochastic boats generated acoustic target signal detection in time-frequency domain
Author :
Cheng, Eric D. ; Piccardi, Massimo ; Jan, Tony
Author_Institution :
Dept. of Comput. Syst., Univ. of Technol., Sydney, NSW, Australia
Abstract :
This paper is devoted to theoretic algorithms development and experimental research of automatic target detection of acoustic signals, especially for boats generated signals. In this paper, an observation space is created by sampling and dividing input analog acoustic signal into multiple frames and each frame is transformed into frequency domain. In the created observation space, a median constant false alarm rate (MCFAR) and post detection integration algorithms have been proposed for an effective automatic target detection of boat generated acoustic signals, in which a low constant false alarm rate is kept with relative high detection rate. The proposed algorithms have been tested on real boat generated acoustic signals. The statistical analysis and experimental results showed that the proposed algorithm has kept a very low false alarm rate and relatively high detection rate.
Keywords :
acoustic signal detection; alarm systems; radar detection; radar target recognition; time-frequency analysis; MCFAR; acoustic target signal detection; median constant false alarm rate; post detection integration algorithm; stochastic boats; time-frequency domain; Acoustic signal detection; Acoustic testing; Boats; Frequency domain analysis; Object detection; Sampling methods; Signal detection; Signal generators; Stochastic processes; Time frequency analysis;
Conference_Titel :
Signal Processing and Information Technology, 2004. Proceedings of the Fourth IEEE International Symposium on
Print_ISBN :
0-7803-8689-2
DOI :
10.1109/ISSPIT.2004.1433810