GPR Image Processing by Synthetic Aperture Focusing Technique

• Main Author: 吳永泉
• Other Authors: Yeh Ching-Yung
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/37837684558953399501

碩士 === 大葉大學 === 電機工程學系碩士班 === 92 === GPR transmits microwaves into the materials to be inspected, and then assuming the target or volume illuminated is composed of point-like scatters, the received signal consists of a sum of scaled and delayed versions of the transmitted signal. This pulse-echo technique gives range information about the location of targets but no azimuth information. In this article, we tried to develop an efficient high-speed Synthetic Aperture Focusing Technique to focus each of the arcs resulting from a point scatter into a single point. Without making sacrifices of image quality, a reduction of 75% computation time has been achieved.