基于小波分析的水声通信技术研究及其硬件实现

发布时间：2018-05-16 17:15

本文选题：水声通信 + 小波分析　；参考：《浙江大学》2017年硕士论文

【摘要】：随着海洋的大力开发,同时国家对国防建设的重视及其发展,利用水声通信技术来传递信息的需求大为增加。水声通信以声波为载体来进行数据或信息的传输。水声通信技术不仅仅在军事方面应用越来越广泛,在民用方面也得到了许多应用,带来了许多便利与好处。本课题的研究内容是探究有效的水声通信技术,并设计其硬件电路系统,在水下航行器水下通信领域具有重要的意义和实际应用价值。本文主要工作包括以下三方面:(1)基于小波分析的水声信号的解调技术。通过小波变换对PSK信号和FSK信号进行特征提取,而后对特征加以分析,最后完成解调还原出原始信号。(2)设计水声调制及解调电路,以此驱动水声换能器进行工作,建立硬件平台,并进行水声信号发射接收实验。(3)在硬件平台的基础上,进行水声通信实验,对采集到的水声信号数据通过文中提出的小波分析方法进行处理和分析。
[Abstract]:With the great development of the ocean and the attention and development of national defense construction, the demand for transmitting information by underwater acoustic communication technology is greatly increased. Acoustic communication is used to transmit data or information with sound wave as carrier. Underwater acoustic communication technology is not only widely used in military aspects, but also in civilian aspects. Application has brought many conveniences and benefits. The research content of this topic is to explore effective underwater acoustic communication technology and design its hardware circuit system. It has important significance and practical application value in underwater vehicle underwater communication field. The main work of this paper includes the following three aspects: (1) demodulation technique of underwater acoustic signal based on wavelet analysis PSK signal and FSK signal are extracted by wavelet transform, then the characteristics are analyzed, and the original signal is obtained by demodulation. (2) design acoustic modulation and demodulation circuit to drive the underwater acoustic transducer to work, establish the hardware platform, and carry out the experiment of underwater acoustic signal transmitting and receiving. (3) based on the hardware platform The underwater acoustic communication experiment is carried out, and the collected underwater acoustic signal data are processed and analyzed by the wavelet analysis method proposed in this paper.

【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN929.3

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