基于LabVIEW的虚拟回声测深仪研究

发布时间：2018-10-16 15:23

【摘要】：针对航海院校中航海仪器实验教学存在学生人数多、实验仪器台套数不足,学生实际动手操作时间少、难以有效提高学生航海仪器实际操作技能的问题,以及实验室中回声测深仪回波信号实现的问题,本论文设计并实现了一种虚拟回声测深仪用于航海仪器实验教学。论文采用模块化设计的方法,在分析原型机功能的基础上,将虚拟回声测深仪软件的功能划分为系统参数模块、功能菜单模块、回波信号模块三大模块。论文选用LabVIEW作为开发虚拟回声测深仪的软件平台,开发实现了一种能够仿真海底回波信号和水中杂波信号的虚拟回声测深仪。经过运行结果测试验证,虚拟回声测深仪实现了原型机的重要功能,能对海底回波信号和杂波信号进行仿真,获得较好的仿真效果。在实现虚拟回声测深仪的过程中,论文工作的特色包括:基于电脑操作系统时间的,可以独立设置而不影响电脑系统时间的时间调整功能;一个旋钮配合多个功能键输入参数的功能;实时动态变化的海底回波和杂波信号的仿真生成。虚拟回声测深仪的实现,能够代替真实回声测深仪用于实验教学中,让学生能够人手一机进行操作训练,以较低的经济成本解决了实验室中回声测深仪真实设备台套数不足的问题,同时也实现了动态变化的回波信号的生成。
[Abstract]:Aiming at the problems that the number of students is more, the number of experimental instruments is insufficient, the actual operation time of the students is small, the practical operation skills of the students are difficult to effectively improve, and the problem of the echo signal realization of the echo sounder in the laboratory is difficult, This paper designs and implements a virtual echo sounder for experimental teaching of marine instruments. On the basis of analyzing the function of prototype, the function of virtual echo sounder software is divided into three modules: system parameter module, function menu module and echo signal module. Based on LabVIEW as a software platform for developing virtual echo sounder, a virtual echo sounder which can simulate submarine echo signal and clutter signal in water is developed. Through the test and verification of the operation result, the virtual echo sounder realizes the important function of the prototype, and can simulate the underwater echo signal and the clutter signal to obtain better simulation effect. In the process of realizing the virtual echo sounder, the characteristics of the paper work include: based on the time of the computer operating system, it can be set independently without affecting the time adjustment function of the computer system time; Simulation and generation of submarine echo and clutter signal with real-time dynamic change. The realization of the virtual echo sounder can be used in the experimental teaching instead of the real echo sounder, so that the students can carry out operation training by a hand machine, solve the problem of insufficient number of real equipment sets of the echo sounder in the laboratory at lower economic cost, At the same time, the generation of the echo signal with dynamic change is also realized.
【学位授予单位】：华侨大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U675-4

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