雷达科学与技术2013，Vol.11Issue(3)：255-261,7.DOI:10.3969/j.issn.1672-2337.2013.03.006
星载P波段SAR电离层效应的双频校正方法
A Double Frequency Measurement and Correction Method for Ionospheric Effects in Space-Borne P-Band SAR
赵宁 1谈璐璐 2张永胜 2董臻 3李景文 3葛家龙1
作者信息
- 1. 北京航空航天大学电子信息工程学院,北京100083
- 2. 中国电子科技集团公司第三十八研究所,安徽合肥230088
- 3. 国防科技大学,湖南长沙410073
- 折叠
摘要
Abstract
For high resolution spaceborne P-band SAR system,ionosphere effects would cause many serious errors,such as time delay,Faraday rotation,dispersion,etc.These errors are relative to wave frequency and TEC of ionosphere and drop the image quality.How to measure and correct these errors is very important to space-borne P-band SAR system.According to SAR system characteristics and the double frequency measurement and compensation method used in GPS system,this paper puts forward an ionosphere delay error measurement method based on double frequency SAR range profile correlation detection.The simulation result indicates that the proposed method can effectively increase ionosphere delay error measurement precision,and can be used in low frequency space-borne SAR system to decrease the ionospheric effect.关键词
星载SAR/P波段/电离层效应/距离像/相关检测Key words
space-borne SAR/ P-band/ ionospheric effect/ range profile/ correlation detection分类
信息技术与安全科学引用本文复制引用
赵宁,谈璐璐,张永胜,董臻,李景文,葛家龙..星载P波段SAR电离层效应的双频校正方法[J].雷达科学与技术,2013,11(3):255-261,7.
