设计了一种基于角度-多普勒分辨的接发同轴反射层析激光成像雷达系统,给出了基本成像原理和数学表达,相应分析了目标横向距离分辨率和单个角度采样时间的关系。并在实验室平台上模拟远场衍射传输,获取探测目标的角度-多普勒分辨的反射投影图,采用滤波反投影算法实现目标横截面图像重建。此方法采用相干外差探测,可以大大提高雷达接收信号灵敏度,同时不涉及光频空间相位和时间相位,成像中没有相位匹配过程,降低了实施技术难度,具有一定的实际意义和使用价值。 A coaxial laser imaging radar system based on angle-Doppler resolution is designed, and the basic imaging principle and mathematical expression are given. The relationship between the target horizontal distance resolution and the single-angle sampling time is analyzed accordingly. The far-field diffraction transmission was simulated on a laboratory platform to obtain the angle of the detection target-Doppler-resolved reflection projection, and the filter was used to reconstruct the target cross-section image. This method uses coherent heterodyne detection, which can greatly improve the sensitivity of the radar receiving signal, and does not involve the phase and time phase of the optical frequency and frequency. There is no phase matching process in the imaging, which reduces the technical difficulty of implementation and has certain practical significance and practical value.