NSSC OpenIR  > 微波遥感部
地球自转对星载合成孔径高度计的影响
Alternative TitleEarth Rotation Effect on Satellite Synthetic Aperture Altimeter
史灵卫; 刘和光; 许可; 杨双宝; 徐曦煜; 王磊; lingwei004@163.com
Department微波遥感部
Source Publication遥感技术与应用
2011
Volume26Issue:3Pages:277-282
ISSN1004-0323
Language中文
Keyword合成孔径 高度计 延迟补偿 地球自转
Abstract合成孔径高度计在方位向采用了合成孔径的方法,是一种新型高度计。在回波数据处理中,要在多普勒域进行延迟补偿,故而需对回波的多普勒频率特性进行研究。通过对卫星雷达和地面目标相对运动速度的分析,得到了回波的多普勒频率公式。地球自转所产生的多普勒频率对合成孔径高度计的回波波形、有效视数和测量精度存在一定影响。因此在延迟补偿、系统设计、信号处理等方面要加以考虑。
Other AbstractCompared with the conventional radar altimeter,the synthetic aperture altimeter that uses the synthetic aperture technology in along track is a new-concept altimeter.As the delay compensation is corrected in the Doppler domain in the data processing,it is important to know the Doppler properties of the return waves.The formula about Doppler frequency is deduced from the relative velocity of the radar and the scatting point.As a result,the Doppler frequency from the earth rotation has an important effect on the echo waveform,measuring accuracy and effective number of look for satellite synthetic aperture altimeter.These must be considered in the delay compensation,system design and signal processing.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3413
Collection微波遥感部
Corresponding Authorlingwei004@163.com
Recommended Citation
GB/T 7714
史灵卫,刘和光,许可,等. 地球自转对星载合成孔径高度计的影响[J]. 遥感技术与应用,2011,26(3):277-282.
APA 史灵卫.,刘和光.,许可.,杨双宝.,徐曦煜.,...&lingwei004@163.com.(2011).地球自转对星载合成孔径高度计的影响.遥感技术与应用,26(3),277-282.
MLA 史灵卫,et al."地球自转对星载合成孔径高度计的影响".遥感技术与应用 26.3(2011):277-282.
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