基于多视处理的合成孔径声呐运动补偿研究  

Research on synthetic aperture sonar motion compensation based on multi-look processing

作　　者：许稼[1] 蒋兴舟[1] 唐劲松[2] 张春华[2] 彭应宁[3] 

机构地区：[1]海军工程大学兵器工程系,湖北武汉430033 [2]中国科学院声学所,北京100080 [3]清华大学电子工程系,北京100084

出　　处：《系统工程与电子技术》2003年第12期1481-1484,1523,共5页Systems Engineering and Electronics

基　　金：国家自然科学基金(60128102)

摘　　要：载体的不规则运动造成的多普勒中心与调频率的估计误差是合成孔径声纳(synthetic aperture sonar,SAS)成像质量下降的主要原因。研究了基于多视处理的图像域多普勒参数估计方法,证明了其能够满足SAS运动补偿的特点和应用要求,进而提出了一个完整的SAS运动补偿和成像的系统方案。最后,实际湖试结果也证明了该方案的有效性。In synthetic aperture sonar (SAS) imaging the estimation errors of Doppler center and Doppler rate due to the non-idealistic platform motions are the primary reason for degradation of image quality. The Doppler parameter estimation methods based on multi-look processing are studied and it is verified that the methods can satisfy the characteristic and applied demand of the SAS motion compensation. Futhermore a complete systematic method for SAS motion compensation and imaging is provided. Finally the real results of lake trail have verified also the effectiveness of given methods.

关 键 词：合成孔径声纳 多普勒参数估计 运动补偿 多视处理 回波相位 

分 类 号：U666.7[交通运输工程—船舶及航道工程]