摘要
回顾了中国科学院电子学研究所重复飞行机载L-SAR干涉系统和机载X波段双天线干涉SAR系统的研制和试验,阐述了利用收发天线分置结构拓展干涉基线长度的方法。在采用三天线的收发天线分置结构机载干涉SAR的基础上,构建三天线的双基线机载干涉SAR,并就其基线精密动态测量和基线优化设计两个关键技术以及系统性能进行了分析。分析结果表明,利用三天线构成的双基线机载干涉SAR是改进相位展开过程、提高高程测量精度的有效方法。
Development and experiments on the repeat-pass airborne L-band interferometric SAR and the airborne X-band dual-antenna interferometric SAR developed by IECAS are reviewed. A method to achieve long basehne on small aircraft using triantenna configuration （one for transmitting, the other two for receiving ） is described. On this basis, a dual -baseline single pass airborne interferometric SAR using three antennas is proposed. Two key points of the dual-baseline interferometric SAR, that is baseline dynamic measurement and baseline optimization, as well as its system performance are discussed. The results show that dual-baseline airborne interferometric SAR using three antennas is an efficient scheme to improve phase unwrapping processing and improve height measurement accuracy.
出处
《现代雷达》
CSCD
北大核心
2006年第10期70-74,78,共6页
Modern Radar
基金
国家高技术研究发展计划("863"计划)
关键词
机载干涉SAR
三天线干涉SAR
双基线干涉SAR
基线动态测量
基线优化设计
airborne interferometric SAR
tri-antenna interferometric SAR
dual-baseline airborne intefferometric SAR
baseline dynamic measurement
baseline optimization
