摘要
介绍了一种新型的三维成像雷达高度计的研究方案。这种新型的雷达高度计采用双抛物面天线,在方位向利用合成孔径技术,在距离向利用线性调频脉冲压缩技术来获得两个方向的地面分辨率,在第三维高度方向利用双天线获取相干信号并通过算法提取高程信息。该高度计可同时用于海洋和陆地的成像。
This paper presents the system
scheme of a new radar altimeter suitable for high spatial resolution earth topography
observation.The new system is equipped with two parabolic antennas.The synthetic aperture
techniques in azimuthal direction and the linear frequency modulation (LMF) pulse compression
techniques ensures the two dimensional resolution of the terrain resolution cell,while the
correlation phase extraction processing of the signals from the two receiving channel enables
the estimation of the height of the resolution cell.This new altimeter can be used both in ocean
and land observation.
出处
《遥感技术与应用》
CSCD
1999年第1期11-14,共4页
Remote Sensing Technology and Application
关键词
雷达高度计
综合孔径
相关相位
三维成像
Radar altimeter,Synthetic
aperture,Correlation phase,Topography mapping