As a new microwave remote sensing mode, video SAR provides a continuous surveillance over a region of interest. An implementation method of video SAR based on spotlight SAR imaging mode is proposed in this study. The segmentation method of SAR raw data and the attitude maneuver strategy for video SAR are also discussed. Rotation between consecutive frames is avoided through yaw compensation, and Euler angles and angular rates are obtained based on theoretical analysis. Finally the simulation and numeric experiments verify the feasibility of the method and strategy.
LIANG Jian
,
ZHANG Running
,
WANG Dawei
,
LUO Rongzheng
. Attitude maneuver strategy of video mode based on agile SAR satellite[J]. Journal of University of Chinese Academy of Sciences, 2019
, 36(1)
: 125
-130
.
DOI: 10.7523/j.issn.2095-6134.2019.01.017
[1] 徐辉. 星载SAR系统参数设计[D]. 南京:南京电子技术研究所,2004.
[2] 刘韬. 国外视频卫星发展研究[J]. 国际太空,2014,9(429):50-56.
[3] Linnehan R,Miller J,Bishop E,et al. An Autofocus Technique for Video-SAR[J]. Proc of SPIE, 2013, 8746(8):1-10.
[4] 赵雨露, 张群英, 李超, 等. 视频合成孔径雷达振动误差分析及补偿方案研究[J]. 雷达学报, 2015, 4(2):230-239.
[5] Zhao S T,Chen J, Yang W,et al.Image formation method for spaceborne video SAR[C]//IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar. Singapore:2015:148-151.
[6] 宋晓燊, 禹卫东.条带式VideoSAR参数依赖关系的推导及应用[J]. 中国科学院大学学报,2016,33(1):121-127.
[7] Miller J,Bishop E, Doerry A. An application of backprojection for video SAR image formation exploiting a subaperture circular shift register[J]. Proc of SPIE, 2013, 8746(9):1-14.
[8] Robert W, Wendy L. Aperture weighting technique for video synthetic aperture radar[J]. Proc of SPIE, 2011, 8051(7):1-7.
[9] 章仁为. 卫星轨道姿态动力学与控制[M]. 北京:北京航空航天大学出版社, 1998.
[10] 韩晓磊, 张庆君, 刘杰, 等. 敏捷SAR卫星聚束模式姿态机动策略研究[J]. 航天器工程, 2016, 25(4):13-19.
[11] 孙志远, 张刘,金光, 等. 视频小卫星凝视姿态跟踪的仿真与实验[J]. 光学精密工程, 2011, 19(11):2715-2723.
