摘要
详细分析了合成孔径雷达图像中相干斑的统计特性，提出了一种具有窗口自选功能的自适应相干斑滤波算法，并将该算法用于Ｓｅａｓａｔ－ＡＳＡＲ图像的滤波处理；并将滤波结果与Ｌｅｅ算法和Ｏｄｄｙ算法作了对比试验，其结果表明滤波性能优于Ｌｅｅ算法和Ｏｄｄｙ算法。
A new adapted speckle filtering algorithm is presented on the speckle noise statistics in thispaper,which is able to reduce the speckle noise and selete filtering window for SAR images .The algorithm is presented for application to SeasatAR images.The experimental rcsults are comparised with that ofLee and Oddy s,which operates along similar computational principles.The quantitative comparison resultsassess that our algorithm may be a more robust one.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1995年第5期461-466,共6页
Journal of University of Electronic Science and Technology of China
关键词
合成孔径雷达
相干斑
相干斑滤波算法
等效视数
SAR
speckle
speckle filtering algorithm
epuivalent number of Iooks
method ofIeast squares
