上海交通大学学报(自然版) ›› 2012, Vol. 46 ›› Issue (07): 1163-1167.

• 物理学 • 上一篇    下一篇

水下小目标的回波特性

潘安, 卓琳凯, 范军   

  1. (上海交通大学 海洋工程国家重点实验室, 上海 200240)
  • 收稿日期:2011-06-21 出版日期:2012-07-30 发布日期:2012-07-30

Research on the Echo Characteristic of Underwater Small Targets 

 PAN  An, ZHUO  Lin-Kai, FAN  Jun   

  1. (State Key Laboratory of Ocean Engineering, Shanghai Jiaotong University, Shanghai 200240, China)
  • Received:2011-06-21 Online:2012-07-30 Published:2012-07-30

摘要: 摘要: 
应用板块元方法对水下小目标的回波特性进行了研究,包括回声强度和多波束近程回波亮点声图像仿真等.通过回声强度计算和多波束仿真表明,小目标的目标强度指向性很强,并且可以看出亮点形成结构.湖上实验结果表明,板块元方法可以对水下小目标的回波特性进行预报且预报结果良好. 关键词: 
水下小目标; 回声强度; 角度距离谱 中图分类号:  O 421
文献标志码:  A    

Abstract: Theory of the article was applied in research of the echo characteristic of underwater small targets,comprising the target strength and the multibeam of short range echo highlight of sonar image emulation using the BKY method which used to forecast the large size targets such as submarines. The theory was tested and verified by the experiment on the lake. It can be concluded that the target strength of small targets changes dramatically with the angle variation. It is difficult to detect underwater small targets owing to the target strength minor. The optimization of line shape is important to conceal property. The BKY method can be applied to forecast the echo characteristic of underwater small targets. 

Key words: underwater small target, echo strength, angle and distance spectrum