摘要
本文根据SAR成像机理 ,给出了SAR相干斑的确切定义 ,分析了其产生的原因 ,并给出了统计方法和公式。
Speckle noise in high resolution synthetic aperture radar(SAR) images is generated by the coherent processing of radar signals and exists in all types of coherent image systems.This paper analyzes the characteristics and statistical properties of speckle noise in SAR images,presents an accurate definition of the speckle, explains the cause of the speckle noise and gives the statistics formula.The experiment results indicate that the statistic result is more precise than the traditional statistic result.
出处
《信息工程大学学报》
2000年第4期93-95,共3页
Journal of Information Engineering University
