太赫兹科学与电子信息学报2024，Vol.22Issue(1)：46-53,8.DOI:10.11805/TKYDA2022118
W波段机载视频合成孔径雷达系统
W-band airborne video synthetic aperture radar system
陈庆锌 1刘亚波 1王露豪 1喻忠军1
作者信息
- 1. 中国科学院 空天信息创新研究院,北京 100094
- 折叠
摘要
Abstract
Synthetic Aperture Radar(SAR)works all day and all weather,and has a wide application in the field of earth remote sensing.Video SAR expands the spatial dimension information obtained by SAR imaging to the space-time dimension to obtain richer remote sensing information.The low frequency band of traditional SAR leads to long synthetic aperture time,large amount of data calculation,and great difficulty in high frame rate output.However,the low frequency terahertz wave has strong perception on target details and short synthetic aperture,which is especially suitable for video perception of weak targets.A video SAR system working in the W-band is designed,which adopts the solid-state front end system of bistatic continuous wave,with peak output power of 1 W and maximum transmission bandwidth of 1 GHz.The Polar Format Algorithm(PFA)along with Graphics Processing Unit(GPU)processing architecture is employed to realize high frame rate and low delay imaging.The simulation results show that the imaging resolution of the system can reach 0.15 m and the imaging frame rate is 5 Hz.关键词
合成孔径雷达/视频SAR/W波段/极坐标格式算法/成像Key words
Synthetic Aperture Radar/video SAR/W-band/Polar Format Algorithm/imaging分类
信息技术与安全科学引用本文复制引用
陈庆锌,刘亚波,王露豪,喻忠军..W波段机载视频合成孔径雷达系统[J].太赫兹科学与电子信息学报,2024,22(1):46-53,8.
