嫦娥三号测距测速雷达回波的数值仿真
发布时间：2019-04-29 15:36
【摘要】：中国嫦娥三号(Chang’e-3,CE-3)着陆器装载多波束测距测速雷达,实现对软着陆过程的控制.论文对CE-3拟着陆点虹湾地区的雷达回波信号进行电磁散射仿真.基于月球虹湾地区高分辨率数字地型模型(Digital Terrain Model,DTM),利用高频基尔霍夫近似(Kirchhoff Analysis,KA)方法分析雷达降落过程中回波功率和散射系数的特性,分析雷达波束角、频率、极化等参数对回波功率和散射系数(Normalized Radar Cross Section,NRCS)特性的影响.
[Abstract]:The Chinese Chang'e-3 (Chang'e-3,CE-3) lander is equipped with multi-beam ranging radar to control the soft landing process. In this paper, the radar echo signal in Hongwan area of CE-3 landing point is simulated by electromagnetic scattering. Based on the high resolution digital terrain model (Digital Terrain Model,DTM) in Hongwan area of the Moon, the characteristics of echo power and scattering coefficient during radar landing are analyzed by using the high frequency Kirchhoff approximation (Kirchhoff Analysis,KA) method, and the beam angle and frequency of radar are analyzed. The effects of polarization and other parameters on the echo power and scattering coefficient (Normalized Radar Cross Section,NRCS) characteristics.
【作者单位】： 复旦大学电磁波信息科学教育部重点实验室;
【基金】：国家自然科学基金(编号:61001007)
【分类号】：TN957.52
本文编号：2468327
[Abstract]:The Chinese Chang'e-3 (Chang'e-3,CE-3) lander is equipped with multi-beam ranging radar to control the soft landing process. In this paper, the radar echo signal in Hongwan area of CE-3 landing point is simulated by electromagnetic scattering. Based on the high resolution digital terrain model (Digital Terrain Model,DTM) in Hongwan area of the Moon, the characteristics of echo power and scattering coefficient during radar landing are analyzed by using the high frequency Kirchhoff approximation (Kirchhoff Analysis,KA) method, and the beam angle and frequency of radar are analyzed. The effects of polarization and other parameters on the echo power and scattering coefficient (Normalized Radar Cross Section,NRCS) characteristics.
【作者单位】： 复旦大学电磁波信息科学教育部重点实验室;
【基金】：国家自然科学基金(编号:61001007)
【分类号】：TN957.52
【相似文献】
相关期刊论文 前2条
1 房鸿瑞;;深空通信导航技术及其标准[J];遥测遥控;2009年03期
2 徐科华,马晶,谭立英;可行的月地激光链路分析[J];光通信技术;2005年05期
相关会议论文 前1条
1 王晓海;;深空测控通信技术最新研究进展[A];中国宇航学会深空探测技术专业委员会第六届学术年会暨863计划“深空探测与空间实验技术”重大项目学术研讨会论文集[C];2009年
，本文编号：2468327
本文链接：https://www.wllwen.com/kejilunwen/wltx/2468327.html
