电讯技术2017，Vol.57Issue(4)：387-392,6.DOI:10.3969/j.issn.1001-893x.2017.04.003
地球同步轨道SAR天线约束分析与数字波束形成设计
GEO SAR Antenna Constraint Analysis and DBF Design
李维梅 1刘波 1李光廷 1左伟华1
作者信息
- 1. 西安空间无线电技术研究所,西安 710100
- 折叠
摘要
Abstract
To meet the earth observation demands of the geosynchronous earth orbit synthetic aperture radar(GEO SAR) and take other factors such as the launch into consideration,a possible antenna form,which combines the technology of digital beam forming(DBF) with reflector,is presented based on the analysis of the antenna size and power of GEO SAR under certain parameters.DBF in elevation lowers the system restrictions on pulse-width,so the transmitting peak power is decreased.DBF in azimuth reduces the system operation pulse repetition frequency(PRF),thus the swath width is enlarged.The design method provides theoretical reference for the development of GEO SAR antenna in the future.关键词
星载合成孔径雷达/地球同步轨道卫星/天线面积/发射功率/阵馈反射面/数字波束形成Key words
spaceborne SAR/GEO satellite/antenna area/transmitting power/array-fed reflector/digital beam forming分类
信息技术与安全科学引用本文复制引用
李维梅,刘波,李光廷,左伟华..地球同步轨道SAR天线约束分析与数字波束形成设计[J].电讯技术,2017,57(4):387-392,6.
