合成孔径雷达(SAR)具有高分辨率、远距离、全天候和穿透力强等特点,它是一种高空视觉系统,能够采集到大量对人类生产和生活有意义的信息。近年来,SAR图像的目标识别一直是国内外研究的重点和热点。傅立叶变换一直是图像处理的基石,小波变换是傅立叶变换的发展和拓展。本文基于小波变换对SAR图像的识别做了深入研究,对SAR图像处理过程中两个重要部分:预处理和特征提取进行改进,以提高识别精度。 SAR图像的识别要经过图像预处理,特征提取和识别三个大步骤:在图像预处理方面,本文采用了两个方案对SAR图像进行预处理,方案之一是先对SAR图像去噪,接着对去噪后的图像进行分割;方案之二是先对图像去噪,去噪之后以...Synthetic Aperture Radar (SAR) has characteristics of high resolution, long-range distance, all-weather condition, strong penetration and so on. SAR is a high-altitude visual system which is capable of gathering a large amount of meaningful information about human production and life. In recent years, SAR image target recognition has been the focus and hotspot of research at home and abroad. Fouri...学位:工学硕士院系专业:信息科学与技术学院_计算机技术学号:2302010115302