Code Sequence Synchronisation for SAR Radiometric Calibration

摘要：

Code sequence synchronisation in active coded transponder (ACT) is very important in the process of sAR radiometric calibration. According to the principle of coded SAR radiometric calibration,a signal processing model of active coded reflected signals is proposed in this paper.By means of three cyclic steps,correlation property of pseudorandom code sequence is used for code sequence synchronisation which is divided into two steps:coarse timing synchronization and tine timing synchronization.Simulation experiments with the compression of SAR azimuth signals are carried out.Finally,based on the experimental results,this paper proposes a new method of code sequence synchronisation for SAR radiometric calibration.

关键词： synthetic aperture radar (SAR) active coded transponder (ACT) radiometric calibration synchronisation cross-correlation

作者: Wang Yiding Wang Zhulei

作者单位: North China University of Technology.Beijing,100144 Graduate University of Chinese Academy of Sciences,Beijing,100049

会议类型: 国际会议

会议名称: 2009 2nd Asian-Pacific Conference on Synthetic Aperture Radar(第二届亚太合成孔径雷达会议)

会议地点: 西安

会议语种:英文

页码: 302-305

在线出版日期: 2009-10-26（万方平台首次上网日期，不代表论文的发表时间）