高分辨率相控阵三维声纳图像实时获取方法研究

项目名称： 高分辨率相控阵三维声纳图像实时获取方法研究

项目编号： No.61303139

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 自动化技术、计算机技术

项目作者： 陈朋

作者单位： 浙江工业大学

项目金额： 23万元

中文摘要： 高分辨率相控阵三维成像声纳是海洋领域的一个新兴技术，该技术在海上工程实施、海港墙壁检查、海底管道检查和蛙人探测等方面具有广泛的应用前景。目前高分辨率相控阵三维声纳图像实时获取方法面临复杂的前端处理通道及高数据通信带宽这两个难题，同时由于复杂前端处理通道导致系统功耗偏大及成像算法计算量巨大问题。本项目对相控阵接收换能器平面阵的稀疏优化及三维声纳图像无损压缩算法进行研究，以优化复杂的前端处理通道，减少系统功耗，降低三维声纳图像数据传输带宽。最后，将三维声纳图像压缩算法移植到FPGA上，为该算法在相控阵三维成像声纳系统中的实际应用奠定基础。本项目有望在相控阵接收换能器平面阵的稀疏优化和三维声纳图像无损压缩算法方面获得重要的学术成果，对提升我国在三维成像声纳系统领域的研究水平有积极的作用。

中文关键词： 声纳；图像处理；稀疏阵；波束形成；阵列信号处理

英文摘要： The phased array three-dimensional (3-D)sonar imaging,which has broad application prospects in offshore engineering, harbor walls checks, submarine pipeline inspection and divers detection,is an emerging technology in the field of marine. Critical issues in the development of phased array 3-D sonar images real-time acquisition method are the complex front-end channels and high data communication bandwidth, at the same time due to the complex front-end processing channel, the system power consumption is large and computation load is huge. The project make study of phased array sparse array optimization and 3-D sonar image lossless compression algorithm, in order to optimize the complex front-end processing channels, reduce system power consumption, reduce the 3-D sonar image data transmission bandwidth. Finally, the loseless image compression algorithm will be implemented on FPGA, which would lay the foundations for the practical applications of the algorithm in the phased array 3-D imaging sonar system. The project is expected to achieve some important academic results in the sparse array and the loseless image compression algorithm for phased array 3-D imaging sonar systems, and it will also raise our country's research level in the field of 3-D imaging sonar system.

英文关键词： sonar；image processing；sparse array；beamforming；array signal processing