摘要
论述了星载波束扫描合成孔径雷达（ＳｃａｎＳＡＲ）的扫描覆盖特性，指出在满足观测带远端模糊性约束条件下，最大观测带宽度与雷达波长和实际天线孔径的形状无关；阐述了观测带宽度与雷达分辨率、天线面积、发射功率和回波数据率等参数之间的约束关系；给出了数值计算例子。
In this paper,the properties of scanning coverage for a satellite borne ScanSAR have been analyzed in detail.It is shown that the maximun width of observing zone for a satellite borne ScanSAR is independent of radar wavelength and real shape of antenna aperture if the restraint conditions for far range ambiguity are met in design.The antenna design shall be trade off between allowable size and beam number.The average and peak transmitting power of satellite borne ScanSAR and quantitative relationship of restraint condition of ambiguity are explained.The numerical examples about performance computation of a satelliee borne ScanSAR are given finally.
出处
《中国空间科学技术》
EI
CSCD
北大核心
1998年第4期43-50,共8页
Chinese Space Science and Technology
关键词
波束扫描
合成孔径雷达
数值计算
性能
星载雷达
Antenna bean scanning Syntheitc aperture radar Performance analysis Numerical calculation
