渔用声纳模拟器关键技术的研究

Research on the Key Technology of Fishing Sonar Simulator

从航海教育和培训的角度出发,为完善航海模拟器,使其能在渔业培训中发挥重要的作用,设计了较合理的鱼群模型和海底模型,并采用点映射的方式正确地反映回波位置信息,对鱼群回波和海底回波进行了模拟;提出了基于噪声强度的灰度级别划分方法,结合图像处理技术以提高渔用声纳模拟嚣的回波图像效果。软件实现结果表明,该方法能正确仿真渔用声纳的工作原理,能准确表现声纳回波图像,在理论研究及模拟训练领域具有重要的应用价值。

Concerning marine education and training,the fishing sonar simulator can improve the function of navigation simulator and expand the application of navigation simulator,especially,in fishery training field.The paper focuses on the simulation of shoal echo and seabed echo,and provides a reasonable model for shoal and seabed as well.The paper, moreover,adopts point mapping approach to reflect echo location information accurately,and utilizes gray-level division method based on the intensity of noise and image processing technology to improve the echo image quality of fishing sonar simulator.The result shows that the method and the model referred in the paper can simulate sonar principle and show the sonar echo correctly and have important application value both in theory research and simulation training field.