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Title: Research on the airborne SAR motion information sensor
Other Titles: 机载SAR运动补偿传感器研究
Authors: Sun, Y
Liu, J
Chen, W 
Keywords: Synthetic aperture rader
Motion compensating system
Issue Date: 2003
Publisher: 中國學術期刊(光盤版)電子雜誌社
Source: 中国空间科学技术 (Chinese space science and technology), Oct. 2003, v. 23, no. 5, p. 28-32, 69 How to cite?
Journal: 中国空间科学技术 (Chinese space science and technology) 
Abstract: 提出一种不依赖于机载主惯导的运动传感器方案———基于GNSS/SINS的组合运动信息系统。即在SAR成像期间输出以纯惯性为主的信息以保证较高的相对定位精度 ,供SAR成像补偿 ;同时 ,GNSS/SINS的组合保证了长时间的绝对定位精度。介绍了这种运动传感器的原理、数学模型、工作流程控制。实验结果表明 ,基于GNSS/SINS的运动传感器具有很高的精度 ,完全满足了SAR成像的精度要求 ,特别适合于没有机载主惯导或主惯导精度较低的情况。
This paper proposes an improved Motion Information Sensor (MIS) Based on GNSS/SINS for SAR motion compensation. The MIS can provide not only the long term information with absolute accuracy, but also the short term data with high relative accuracy during SAR imaging. System design, error models and navigation algorithms of the MIS are introduced in the paper. The experiment results show that the MIS can provide accurate navigation information (position, velocity and attitude ) to meet the requirements of SAR motion compensation. Especially , the MIS is suitable for the case: the accuracy of airplane master inertial navigation system is too low or not configured.
ISSN: 1000-758X
Rights: © 2003 中国学术期刊电子杂志出版社。本内容的使用仅限于教育、科研之目的。
© 2003 China Academic Journal Electronic Publishing House. It is to be used strictly for educational and research purposes.
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