【作者】 申家振； 张艳宁； 薛笑荣； 段锋；

【Author】 ShenJiazhen Zhang Yanning XueXiaorong DuanFeng (Northwestern Polytechnical University, Xi’an 710072)

【机构】 西北工业大学计算机科学与工程系；

【摘要】 和其它图像相比,SAR图像包含有相干斑噪声。SAR图像斑点噪声的存在使SAR图像的解译工作变得相当复杂。因此研究SAR图像的信号和噪声分特性对于SAR图像的各项处理工作显得格外重要。本文用小波分析的方法研究了SAR图像信号和噪声在频域中的分布特性,然后用实验验证了本文所获得的SAR图像中相干斑噪声分布特性。更多还原

【Abstract】 Speckle is consisted in SAR image, compared with other kinds of images. Because of the speckle, the explaination and interpretation of SAR images becomes very complex. The studying of the signal and speckle distribution features becomes very important in SAR image processing . In the paper, the distribution feature of signal and speckle is studied in the frequency field by using wavelet analysis, then it is proved by experiment.更多还原