参数名称 | LEOSAR | MEOSAR | GEOSAR |
轨道高度 (km) | 514 | 12000 | 35792 |
轨道倾角(°) | 97.42 | 40 | 30 |
轨道偏心率 | 0.003 | 0.003 | 0.003 |
入射角(°) | 45 | 45 | 45 |
近地点幅角(°) | 90 | 90 | 90 |
升交点赤经(°) | 0 | 0 | 0 |
地球模型 | WSG84 | WSG84 | WSG84 |
系统波长(m) | 0.031 | 0.031 | 0.031 |

Citation: Bingji ZHAO, Qingjun ZHANG, Chao DAI, Liping LIU, Zhihua TANG, Weiping SHU, Chong NI. A New Prompt 2-D Attitude Steering Approach for Zero Doppler Centroid of GEOsynchronous SAR[J]. Journal of Electronics and Information Technology, 2019, 41(4): 763-769. doi: 10.11999/JEIT180643

一种新的GEOSAR快速零多普勒中心二维姿态导引方法
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关键词:
- 地球同步轨道合成孔径雷达
- / 残留多普勒中心
- / 2维俯仰–滚动姿态导引
English
A New Prompt 2-D Attitude Steering Approach for Zero Doppler Centroid of GEOsynchronous SAR
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[1]
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表 1 各轨高SAR卫星仿真参数
表 2 GEOSAR从待机状态启动至正侧视成像状态的耗时对比
姿控角速率(°/s) 2维偏航导引(min) 2维俯仰-滚动导引(min) 0.01 125 12.7 0.02 62.5 6.3 0.03 42.7 4.2 -