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介绍一个工作在微波暗室内的X波段超分辨合成阵列成象实验系统。该系统发射宽带线性调频信号,采用时间带宽转换技术获得高的距离分辨力。其接收天线可在直线导轨上移动,形成大孔径合成阵列天线,获得高的横向分辨力。实时采集的数据在PC机上进行处理后给出目标的二维雷达象。超分辨方法使成象分辨力比传统方法提高2倍以上。
An X-band super-resolution array imaging experiment system operating in a microwave darkroom is introduced. The system transmits a wideband chirp signal using time-bandwidth conversion techniques to achieve high range resolution. The receiving antenna can be moved on a linear guide to form a large aperture synthetic array antenna for high lateral resolution. Real-time data collected on the PC machine to give the target after the two-dimensional radar image. The super resolution method makes the image resolution more than 2 times than the traditional method.