海军航空工程学院学报2018，Vol.33Issue(1)：125-129,134,6.DOI:10.7682/j.issn.1673-1522.2018.01.005
海陆交界非平稳场景星载ScanSAR扇贝效应抑制方法
Suppression of Scalloping Effects in Spaceborne ScanSAR Images for Non-Stationary Scene of Coastal Area Monitoring
摘要
Abstract
Scan synthetic aperture radar(ScanSAR)cannot be affected by weather or light,so it is widely used in maritime monitoring and detection.However,the scalloping and inter-scan banding(ISB)are two effects of ScanSAR images which seriously degrade the picture quality.Some non-stationary scenery such as coastal area can further increase the difficulty of ScanSAR image post-processing.In this paper,an algorithm was proposed to suppress scalloping and ISB in ScanSAR images by image segmentation and Kalman filter.Based on ScanSAR working model and mechanism of scalloping,firstly the scalloping and ISB were regarded as an additive two-dimensional periodic function,and then the noise stripes were suppressed by Kalman filter.For the non-stationary scene,image segmentation was applied to make the picture satisfy the Kalman filtering requirement.Finally,the validity of the algorithm was verified by the results obtained after processing re-al ScanSAR image data.关键词
ScanSAR/扇贝效应/非平稳场景/卡尔曼滤波/图像分割Key words
ScanSAR/scalloping/non-stationary scene/Kalman filter/image segmentation分类
信息技术与安全科学引用本文复制引用
谷昕炜,杨威,陈杰..海陆交界非平稳场景星载ScanSAR扇贝效应抑制方法[J].海军航空工程学院学报,2018,33(1):125-129,134,6.基金项目
国家自然科学基金资助项目(61671043) （61671043）
