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Echo Highlight Model of Underwater Target and Design of FPGA Signal Simulation Module

Hu ChenZhang FengzhenZhang ZhaohuiPeng YuanJiang Yi

Science and Technology on Underwater Test and Control Laboratory

摘要:The rapid development of FPGA provides a new platform for target signal simulation. In this paper, we first analyze the mathematical model of underwater target echo highlights, and then design a set of signal generating module based on FPGA, which can simulate the target echo signal under specific target characteristics according to the preset highlight table and copy signal. With 5° as the unit, the angle of incidence is switched between 0°-180 ° by using the mechanical keys. The angle can be displayed in real time through the digital tube. The output signal can be directly connected to the transducer and power amplifier to achieve a specific sound source level. Finally, the signal acquisition test of the simulation module is carried out. 37 angles in the range of 0°-180° were collected and analyzed. The distribution of echo highlights was compared with the table of highlights after matched filter. The module’s performance meets the expectation.
会议名称:

The 5th International Conference on Communication, Image and Signal Processing (CCISP 2020)

会议时间:

2020-11-13

会议地点:

中国四川成都

  • 专辑:

    基础科学; 工程科技Ⅱ辑; 信息科技

  • 专题:

    物理学; 工业通用技术及设备; 无线电电子学; 电信技术

  • DOI:

    10.26914/c.cnkihy.2020.032004

  • 分类号:

    TB566;TN791;TN911.7

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