空天预警研究学报2024，Vol.38Issue(4)：253-257,5.DOI:10.3969/j.issn.2097-180X.2024.04.004
一种基于偏航导引的SAR卫星成像参数更新方法
A yaw steering-based method for updating SAR satellite imaging parameters
摘要
Abstract
In order to solve the problem of lack of parameter calculation methods for low-orbit synthetic aper-ture radar(SAR)satellites with yaw guidance enabled,this paper starts from the actual mission planning require-ments of a certain existing satellite to analyze the influence of yaw guidance on target visibility under the condi-tions of ascending orbit,descending orbit,left-right and side view,and then proposes a method for calculating the updated imaging parameters of yaw guidance for low-orbit SAR satellites to achieve the effect of accurately imag-ing the specified target position.Simulation results show that the yaw caused by the earth rotation has a great influ-ence on the imaging center time and oblique distance.关键词
合成孔径雷达卫星/低轨道成像/偏航导引/精确定位Key words
SAR satellite/low earth orbit(LEO)imaging/yaw steering/precise positioning分类
信息技术与安全科学引用本文复制引用
陈焕然,盛磊,项海兵..一种基于偏航导引的SAR卫星成像参数更新方法[J].空天预警研究学报,2024,38(4):253-257,5.基金项目
国家自然科学基金项目(U20B2068) （U20B2068）
