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详细介绍了机载微脉冲激光成像技术的最新研究进展,并以机载远程目标探测与识别为应用背景,对机载微脉冲激光成像原理进行了理论研究,对比分析了在高分辨率成像系统中采用多通道计数器的单光子探测阵列的优点,着重分析了单光子探测和/或接收器死时间及其对信号探测、测距精度、距离分辨率的影响等关键技术。研究结果表明:与传统的高信噪比激光成像技术相比,微脉冲激光成像技术可以将目标回波采样率提高3个数量级,显著提高了垂直分辨率,降低了系统复杂性,在远距离目标识别、精确制导等领域有着广泛的应用前景。
In this paper, the latest development of airborne micro-pulse laser imaging technology is introduced in detail. Based on the application background of airborne remote target detection and recognition, the theory of airborne micro-pulse laser imaging is studied theoretically. In the high resolution imaging system The advantages of single-photon detection array using multi-channel counter are analyzed. The key technologies of single-photon detection and / or receiver dead time and their influence on signal detection, ranging precision and distance resolution are emphatically analyzed. The results show that compared with the traditional high SNR laser imaging technology, the micro-pulse laser imaging technology can increase the target echo sampling rate by three orders of magnitude, significantly improve the vertical resolution and reduce the system complexity. In the long distance Target recognition, precision guidance and other fields have a wide range of applications.