Journal of Tropical Oceanography ›› 2021, Vol. 40 ›› Issue (2): 130-138.doi: 10.11978/2020045CSTR: 32234.14.2020045

• Oceanographic Research and Observation • Previous Articles     Next Articles

Application of a new type of underwater acoustic buoy in target detection

WANG Chao1,2(), Han Mei1,2(), SUN Qindong1,2, ZHANG Xiaochuan1,2   

  1. 1. Navy Submarine Academy, Qingdao 266199, China
    2. Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
  • Received:2020-05-08 Revised:2020-07-22 Online:2021-03-10 Published:2020-07-29
  • Contact: Han Mei E-mail:120107769@qq.com;hantanxin@163.com
  • Supported by:
    National Key Research and Development Project(2019YFC0311700)

Abstract:

A new type of underwater acoustic buoy platform with target detection capability has been developed by combining vector hydrophone with profile buoys. The acoustic buoy can achieve multiple floating and diving, and has the characteristics of long in-position time, high concealing performance and low cost. The use of multiple underwater acoustic buoys can quickly form a large area coverage. To verify the underwater acoustic buoy’s detection performance on ocean targets, a large scale underwater acoustic buoy platform trial was carried out in the South China Sea in August 2019. The results are as follows: under the typical sound velocity profile of the South China Sea, the acoustic buoy has a maximum detection distance of 13.8 km to the surface vessel with a length of 42 m and a speed of 8.4 kn. The root mean square error (RMSE) of target estimated azimuth can reach 5°, and the standard deviation will be up to 2° when the distance between the acoustic buoy and surface vessel is less than 1.9 km.

Key words: vector hydrophone, target detection, acoustic buoy, South China Sea

CLC Number: 

  • P752.1