Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (12): 228-231.

• 工程与应用 • Previous Articles     Next Articles

Application of band-pass sampling technology in high resolution imaging sonar

DU Wen-ping,WANG Jing-yu,JIANG Li-jun,XU Feng   

  1. Imaging Sonar Technology Lab,Institute of Acoustics,Chinese Academy of Sciences,Beijing 100080,China
  • Received:2007-08-07 Revised:2007-11-22 Online:2008-04-21 Published:2008-04-21
  • Contact: DU Wen-ping

带通采样在高分辨率图像声纳中的应用

杜文萍,王静宇,蒋立军,许 枫   

  1. 中国科学院 声学研究所 图像声纳技术实验室,北京 100080
  • 通讯作者: 杜文萍

Abstract: The paper introduces the practical application of band-pass sampling technology in high resolution imaging sonar, proposes the band-pass sampling principle and the selection criterion of sampling frequency,then provides the digital beam-forming approach based on band-pass sampling technology.Simulation and lake trials of multi-beam imaging sonar system have shown its practicability and engineering efficiency.

Key words: band-pass sampling, multi-beam, high resolution, imaging sonar

摘要: 介绍了带通采样技术在高分辨率图像声纳中的应用;首先阐述了带通采样定理以及采样率的选取原则,然后从多波束图像声纳的原理出发,给出了基于带通采样的数字波束形成方法;仿真和湖上试验表明了这种方法的可行性以及工程实现的有效性。

关键词: 带通采样, 多波束, 高分辨率, 图像声纳