摘要
遥感成像所采用的电磁波波长愈长，受外界的干优越少，但影像分群力越低。合成孔径侧视雷达采用微波作为成像媒体，故能全天候运作，且能达到很高的分辨力，目前可达到0．7米，这是藉助于两种新技术实现的：合成孔径的天线和脉冲压缩技术。本文简明介绍了这种遥感成像系统的原理。
During remote-sensing imaging, outside disturbition decreases with increasing length of electromagnetic wave used, but at the same time, the image definition also decreases By using micro-wave as imaging medium, side-view radar installed with a composite-apetture antenna can work in allweather, and at the same time can achieve high image definition, presently reaching 0. 7m ;this is realized by using two new techniques: antenna with composite aperture and pulse compression technique. This paper outlines the working principle of this remote-sensing imaging system.
出处
《影像技术》
CAS
1997年第3期58-62,共5页
Image Technology
关键词
成像系统
雷达
合成孔径天线
遥感图象处理
remote sensing, imaging system, radar, comppeite aperture antenna
