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Volume 28 Issue 4
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2020  >  28(4): 396-402
WANG Chao, HAN Mei, SUN Qin-dong, LAN Shi-quan. Noise Measurement and Optimization of Underwater Acoustic Glider Platform[J]. Journal of Unmanned Undersea Systems, 2020, 28(4): 396-402. doi: 10.11993/j.issn.2096-3920.2020.04.007
Citation: WANG Chao, HAN Mei, SUN Qin-dong, LAN Shi-quan. Noise Measurement and Optimization of Underwater Acoustic Glider Platform[J]. Journal of Unmanned Undersea Systems, 2020, 28(4): 396-402. doi: 10.11993/j.issn.2096-3920.2020.04.007
shu

Noise Measurement and Optimization of Underwater Acoustic Glider Platform

doi: 10.11993/j.issn.2096-3920.2020.04.007
  • 1.

    Navy Submarine Academy, Qingdao 266199, China

  • 2.

    Pilot National Laboratory for Marine Science and Technology Qingdao, Qingdao 266237, China

  • 3.

    School of Mechanical Engineering, Tianjin University, Tianjin 300350, China

  • Publish Date: 2020-08-31
    Abstract
  • A self-noise test was conducted on the Petrel-II underwater glider in an anechoic pool to improve the application of vector hydrophones to underwater gliders. The influences of platform noise on the received signals of each channel of the vector hydrophone under four conditions were analyzed quantitatively. The results show that the signal received by the integrated vector hydrophone on the underwater glider is critically interfered by the near-field noise of the platform because the platform noise greatly affects the vector channel of the vector hydrophone particularly in the low frequency range below 500 Hz. At the 40 Hz frequency point, the maximum spectral level of the vector hydrophone’s vector channel is increased to 58 dB because of the course adjustment mechanism. According to the noise measurement results of the underwater glider platform, the vibration and noise reduction and the optimization are performed in five aspects. Test results show that the noise interference generated by the course adjustment mechanism on the vector hydrophone is greatly reduced after platform optimization. However, the course adjustment mechanism generates significant noise interference on the vector channel of the vector hydrophone in the frequency range below 200 Hz. This study may provide a reference for the selection of frequency processing range of underwater acoustic gliders in underwater target detection

     

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