Intercalibration of ERS AMI and Envisat ASAR with Ground-Based
Intercalibration of ERS AMI and Envisat ASAR with Ground-Based
复制标题
DOI：
--
复制
发表时间：
2005-04
期刊：
影响因子：
--
通讯作者：
A. Zakharov;P. Zherdev;A. Sokolov
中科院分区：
文献类型：
--
作者：
A. Zakharov;P. Zherdev;A. Sokolov
本文的目的是总结AO 3 -343项目扩展的ERS SAR和ENVISAT ASAR在熊湖定标场的定标和互定标结果。研究区域是莫斯科地区的校准场地，使用抛物面天线（直径为4.7米的碟形天线）作为校准目标超过5年。通过对天线进行适当的改进，在焦区引入了插入式导电圆盘和衍射栅，使天线具有辐射、极化和干涉校准的特性。介绍了1999-2004年ERS定标实验和2003年夏-2004年春ERS和ENVISAT同步定标实验的结果，讨论了ERS AMI和ENVISAT ASAR仪器的定标质量。
RESUME The goal of the paper is to sum up results of ERS SAR and ENVISAT ASAR calibration and intercalibration in the area of Bear Lakes calibration site using under extension of AO3-343 project. The area of study is calibration site in Moscow region with parabolic antennas (4.7 meters diameter of the dish), which were used over 5 years as calibration target. The antennas possess radiometric, polarimetric and interferometric calibration features because of appropriate modification in a form of insertion conducting disks and diffraction grid in a focal area. Results of ERS calibration experiments in 1999-2004 and simultaneous ERS and ENVISAT experiments in Summer 2003 – Spring 2004 are presented and a calibration quality of ERS AMI and ENVISAT ASAR instruments is discussed.