速度測定装置の測定分解能に着目したSAR画像のスペックル雑音低減法

抄録

Speckle noise appears in synthetic aperture radar (SAR) images as a random fluctuation in the images of random rough surfaces. Reduction of speckle noise is necessary for quantitative applications of synthetic aperture radar images to target detection and land cover classification. Multi-look SAR processing is usually used to reduce speckle noise at the expense of spatial resolution. This paper proposes a novel speckle reduction method in which multiple images processed by giving a velocity bias smaller than a resolution of velocity measurement device are added incoherently. Computer simulation results proved the validity of the proposed method.