设计了基于CCD成像法的激光远场能量密度测量系统，给出了CCD成像法测量远场激光能量密度分布的基本原理，并在特定条件下对激光能量测量模型进行简化。利用漫反射靶板将激光的能量分布信息采集至CCD相机，并在靶板的特征位置上安装能量探测器，依据激光能量模型，将激光光斑图像灰度信息与激光能量探头所测的实际能量值进行信息融合，得出灰度值与能量密度的映射关系，进而推测激光远场能量密度分布。实验表明，此系统可以精确测量千米以上的激光远场能量密度分布，测量误差小，且系统简单、可靠，适于各种条件下的激光远场能量密度测量。

A laser far-field energy density distribution measurement system based on CCD imaging is designed, the measurement principles based CCD imaging method is given, and the model of laser energy measurement is simplified under special conditions. The image information of laser energy density reflected by the reflective board is acquired by the CCD camera, and the laser energy data is received by detectors on the reflective board. The laser spot image and the actual energy data gotten by energy detectors are analyzed according to the model of laser energy measurement, the relationship between gray value and energy density is gotten, and then the energy density distribution can be calculated. Experiments show that this system can measure the energy density distribution with less measurement error. The system is simple, reliable, and suitable for far-field energy density distribution measurement under various conditions.