Advanced SearchSearch Tips
Detection of an Object Bottoming at Seabed by the Reflected Signal Modeling
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Detection of an Object Bottoming at Seabed by the Reflected Signal Modeling
On, Baeksan; Kim, Sunho; Moon, Woosik; Im, Sungbin; Seo, Iksu;
  PDF(new window)
Detecting an object which is located at seabed is an important issue for various areas. This paper presents an approach to detection of an object that is placed at seabed in the shallow water. A conventional scheme is to employ a side-scan sonar to obtain images of a detection area and to use image processing schemes to recognize an object. Since this approach relies on high frequency signals to get clear images, its detection range becomes shorter and the processing time is getting longer. In this paper, we consider an active sonar system that is repeatedly sending a linear frequency modulated signal of 6~20 kHz in the shallow water of 100m depth. The proposed approach is to model consecutively received reflected signals and to measure their modeling error magnitudes which decide the existence of an object placed on seabed depending on relative magnitude with respect to threshold value. The feature of this approach is to only require an assumption that the seabed consists of an homogeneous sediment, and not to require a prior information on the specific properties of the sediment. We verify the proposed approach in terms of detection probability through computer simulation.
Active sonar;bottoming objects;shallow water;reverberation;cancellation;
 Cited by
영상 소나를 이용한 수중 물체 외형 복원에 관한 기초 실험,이영준;김태진;최진우;최현택;

전자공학회논문지, 2016. vol.53. 10, pp.116-122 crossref(new window)
E.C. Jeong, T.B. Shim, J.E. Kim, "Underwater Acoustic Image Classification of a Cylindrical object using the Hough Transformation and Nth Degree Polynomial Interpolation", Journal of The Institute of Electronics Engineers of Korea Vol. 50, NO.2, pp. 193-200, 2013.

J.E. Lee, T.B. Shim, "Research on Segmentation for Sidescan Sonar Image by Morphological Method", Journal of The Institute of Electronics Engineers of Korea vol. 49SP, NO.2, pp. 143-148, 2012.

M. Zampolli, A. Espana, K. Williams, S. Kargl, "Low- to mid-frequency scattering from elastic objects on a sand sea floor: Simulation of frequency and aspect dependent structural echoes," J. Comp. Acous. 20, (2012) [14 pages]

D. A. Abraham and A. P. Lyons (2002), "Novel physical interpretations of K-distributed reverberation," IEEE J. Oceanic Eng., vol. 27, pp. 800-813, Oct. 2002. crossref(new window)

W.S. Moon, S.B Im, I.S. Seo, "Analysis of a Scattering Model from an Cylindrical Target in Contact with a Sediment", The Korea Institute of Military Science and Technology Symposium 2015.

Z. Ye, "A novel approach to sound scattering by cylinders of finite length," J. Acoust. Soc. Am., vol. 102, no. 2, pp. 877-884, 1997. crossref(new window)

D. A. Abraham and A. P. Lyons (2004), "Simulation of Non-Rayleigh Reverberation and Clutter",IEEE JOURNAL OF OCEANIC ENGINEERING, VOL. 29, NO. 2.

M. Stojanovic, "On the relationship between capacity and distance in an underwater acoustic communication channel," WUWNet 2006(ACM), Los Angeles, California, USA, Sept. 2006.

L.Berkhovskikh and Y.Lysanov, Fundamentals of Ocean Acoustics "New York: Springer, 1982.

W.J. Son, S.U. Son, J.W. Choi, S.H. Cho, S.K. Jung, "Measurements of Monostatic Bottom Backscattering Strengths in Shallow Water of the Yellow Sea", The Journal of the Acoustical Society of Korea Vol.34, NO.6, pp. 444-454, 2015. crossref(new window)

D. R. Jackson and M. D. Richardson, HighFrequency Seafloor Acoustics, (Springer, New York, 2006) pp. 171-175, 182-192, 237-238.

WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB, "APL-UW High-Frequency Ocean Environmental Acoustic Models Handbook", OCT 1994.

K. V. Mackenzie, "Bottom reverberation for 530- and 1030-cps sound in deep water," J. Acoust. Soc. Am. 33, 1498-1504, 1961. crossref(new window)