中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
双频雷达高度计电离层色散效应误差分析

文献类型:期刊论文

作者徐曦煜 ; 刘和光
刊名中国科学院研究生院学报
出版日期2007
卷号24期号:2页码:235-240
关键词双频高度计 电离层色散效应 二次相位误差 点目标响应
ISSN号1002-1175
其他题名Error analysis of ionospheric dispersion on dual-frequency altimetry
通讯作者北京8701信箱
中文摘要由于现代星载雷达高度计采用了脉冲压缩技术,引入了电离层色散误差,在双频高度计的低频段该误差更明显.本文基于全去斜技术的理论模型,推导了这项误差的机理,提出可以把该误差等效为二次相位误差,并结合具体参数给出了分析的结果.本文还讨论了Chirp信号的多普勒误差对测高的影响.最后,作者通过计算机仿真得到了电离层色散效应对系统点目标响应的影响,对前面的结论进行了验证.
英文摘要Radar altimeters selects full-deramp technology in pulse compression,and apply two frequencies to reduce the ionospheric range errors.These will,as this paper shows,introduce an effect called"Ionospheric Dispersion",especially in lower frequency,and this can lead to errors in height estimation.No foreign document is available to solve this problem,so this paper attempts to illustrate it.The authors finally draw the conclusion that these errors can be treated similarly as the quadratic phase errors,whose nature and solution are well-established,and that the magnitude of this error for a typical altimeter is also discussed.Furthermore,the actual Doppler errors are deduced and it is shown that the existent Doppler algorithms are adequately accurate.Finally,by computer simulation,the sidelobes introduced to the system point target response are illustrated and the errors are estimated
学科主题微波遥感
收录类别CSCD
语种中文
CSCD记录号CSCD:2886514
源URL[http://ir.cssar.ac.cn/handle/122/1971]  
专题国家空间科学中心_微波遥感部
推荐引用方式
GB/T 7714
徐曦煜,刘和光. 双频雷达高度计电离层色散效应误差分析[J]. 中国科学院研究生院学报,2007,24(2):235-240.
APA 徐曦煜,&刘和光.(2007).双频雷达高度计电离层色散效应误差分析.中国科学院研究生院学报,24(2),235-240.
MLA 徐曦煜,et al."双频雷达高度计电离层色散效应误差分析".中国科学院研究生院学报 24.2(2007):235-240.

入库方式: OAI收割

来源:国家空间科学中心

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