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合成孔径成像激光雷达是一种新的主动式有源成像系统,它的一个突出优势是可以获得比合成孔径雷达更高的分辨率,和更接近光学图片的效果。为了研究合成孔径技术在激光波段的相关问题,给出了一种合成孔径成像激光雷达室内实验系统,有效模拟逆合成孔径技术的旋转目标成像技术。首先,概述了旋转目标成像的的基本原理。然后,在分析了系统设计的基本思想和技术难点基础上,改进了已有的室内实验系统,提出了收发镜头分置的系统,有效地克服了端面反射的影响。最后,给出实验系统框图和最终成像效果图,验证了所给系统的有效性和光波波段合成孔径技术的可行性。
Synthetic Aperture Imaging Lidar is a new active active imaging system that offers the distinct advantage of being able to obtain higher resolution than synthetic aperture radar and closer to optical images. In order to study the correlation of synthetic aperture technique in the laser wavelength band, a synthetic aperture imaging lidar indoor experiment system is proposed to effectively simulate the rotational target imaging technique of inverse synthetic aperture technique. First, the basic principle of rotating target imaging is outlined. Then, based on the analysis of the basic ideas and technical difficulties of the system design, the existing indoor experiment system is improved and a system of transmitting and receiving lenses is proposed to effectively overcome the influence of the end reflection. Finally, the experimental system block diagram and the final imaging renderings are given to verify the effectiveness of the proposed system and the feasibility of the synthetic aperture technology.