圆周合成孔径声呐技术综述  

Progress on techniques of circular synthetic aperture sonar

作　　者：杜选民[1,2] 曾赛 DU Xuanmin;ZENG Sai(Shanghai Marine Electronic Equipment Research Institute,Shanghai 201108,China;China Science and Technology on Underwater Acoustic Antagonizing Laboratory,Shanghai 201108,China)

机构地区：[1]上海船舶电子设备研究所,上海201108 [2]水声对抗技术重点实验室,上海201108

出　　处：《声学技术》2022年第3期323-333,共11页Technical Acoustics

基　　金：基础科研项目(JCKY2020206B034);预研项目(3020202070102)支持项目。

摘　　要：圆周合成孔径声呐(Circular Synthetic Aperture Sonar,CSAS)具有亚波长量级的二维分辨率、三维成像能力和全方位观测能力,在水下威胁目标查证、战场环境侦察等领域具有广阔的应用前景。文章分析了CSAS成像原理及分辨率,对国内外CSAS试验研究进展进行了综述,对CSAS成像算法、运动补偿、三维成像和后置处理等关键技术进行了分析,总结归纳了CSAS成像技术存在的问题,并对CSAS未来的发展进行了展望。Circular synthetic aperture sonar(CSAS)has broad application prospects in the fields of underwater threat target verification and battlefield environmental reconnaissance due to its plane resolution of sub-wavelength magnitude,three-dimensional imaging capability and full aspect observation capability.Firstly,the imaging principle and resolution characteristics of CSAS are analyzed in this paper.Then,the research progress of CSAS experiments at home and abroad is reviewed,and the existing problems in CSAS imaging are summarized through the detailed analysis of the key technologies such as imaging algorithms,motion compensation,three-dimensional imaging and posterior processing.Finally,the future development of CSAS is prospected.

关 键 词：圆周合成孔径声呐(CSAS) 层析成像 运动补偿 三维成像 

分 类 号：TN957[电子电信—信号与信息处理]