摘要
该文分析了冲激SAR成像的特点,在发射和接收均为“超宽带信号”、“大方位积累角”的情况下,推导出了冲激信号SAR方位分辩率的解析表达式,并在此基础上对单周波和双周波信号用于冲激SAR成像的方位分辨率、距离分辨率进行了对比和分析,得到一些有用的结论。最后,通过仿真实验验证了这些结论的正确性。
This paper analyzes the special characteristics of impulse signal S AR ,in the process of imaging. In condition of sending, receiving UWB signal with big accumulating angle, the formulation of azimuth resolution is deduced. Single cycle and double cycle signals used in impulse SAR imaging are analyzed and contrasted. Some conclusions are given. Finally, they are proved to be right by the simulation results.
出处
《电子与信息学报》
EI
CSCD
北大核心
2001年第6期559-568,共10页
Journal of Electronics & Information Technology
基金
国家自然科学基金
关键词
超宽带
合成孔径雷达
方位分辨率
反向投影
性能分析
UWB radar, Impulse radar, Synthetic aperture radar, Azimuth resolution, Back projection
