海底小目标高分辨合成孔径声呐成像技术研究进展
Research progress of high-resolution imaging SAS technology with a small seabed target
任露露 1陈世平 1王朋 2张鹏飞 2周跃涛 2黄海宁2
作者信息
- 1. 中国科学院声学研究所,北京 100190;中国科学院大学,北京 100049;中国科学院先进水下信息技术重点实验室,北京 100190
- 2. 中国科学院声学研究所,北京 100190;中国科学院先进水下信息技术重点实验室,北京 100190
- 折叠
摘要
海底小目标的成像探测问题是海底探测领域的经典难题,合成孔径声呐技术为小目标高分辨成像与探测提供了主要技术手段.本文分析了现阶段合成孔径声呐所面临的主要能力提升问题,介绍了合成孔径声呐高分辨成像的基本原理以及多子阵成像技术,并且针对合成孔径声呐面临的技术难点,对运动误差估计与补偿技术、高测绘效率成像技术、非稳定直航下的高分辨成像技术进行了讨论,介绍了相关技术路线与研究进展,并在此基础上展望了海底小目标高分辨成像技术的发展趋势与应用前景.
Abstract
Imaging detection of small targets on the seafloor is a classic puzzling problem in seafloor detection,and synthetic aperture sonar(SAS)technology provides the primary technical solution for high-resolution imaging and detection of small targets.This study analyzes the primary challenges in enhancing SAS capabilities and introduces the basic principle of high-resolution imaging of SAS as well as multi-subarray imaging technology.Moreover,addressing the technical difficulties confronting SAS,this study discusses motion error estimation and compensation technology,high mapping efficiency imaging technology,and high-resolution imaging technology under unstable direct navigation and introduces relevant technical routes and research progress.Finally,on this basis,the development trend and application prospect of high-resolution imaging technology for small seabed targets are fore-casted.
关键词
目标探测/合成孔径声呐/波束形成/运动补偿/重叠相位中心/信号处理/成像算法/子孔径成像Key words
object detection/synthetic aperture sonar/beamforming/motion compensation/displaced phase cen-ter/signal processing/imaging algorithm/subaperture imaging引用本文复制引用
基金项目
中国科学院青年创新促进会项目(2019023)
出版年
2023
国家科技期刊平台
NSTL
维普
万方数据