Turbulence Effects on High Resolution Airborne SAR Performance

被引：0
|
作者：
Sun Jinping [1 ]
Bi Yuekai [1 ]
Han Xiao [1 ]
Wang Yanping [2 ]
机构：
[1] Beihang Univ, Sch Elect & Informat Engn, Beijing, Peoples R China
[2] Chinese Acad Sci, Inst Elect, Natl Key Lab MW Imaging Tech, Beijing, Peoples R China
来源：
2011 INTERNATIONAL CONFERENCE ON ELECTRONICS, COMMUNICATIONS AND CONTROL (ICECC) | 2011年
基金：
中国国家自然科学基金;
关键词：
SAR; high resolution; atmospheric turbulence; imaging performance; PHASE ERRORS;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The imaging performance of high resolution airborne SAR system can be affected by the phase errors resulted from random refractivity fluctuations, when there is a turbulent region in the troposphere. We analyze how the tropospheric refractivity fluctuations affect the high resolution airborne SAR performance. A detailed simulation method is presented to estimate the phase errors caused by atmospheric turbulence. Using the Von Karman model to estimate the refractivity fluctuations in a turbulent region, the structure constant model of atmospheric turbulence and the raw data collected by a Ku-band airborne spotlight- mode SAR with 0.1m resolution, we simulate the actual results of effects of atmospheric turbulence on the SAR image focusing.
引用
收藏
页码：1190 / 1193
页数：4
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