为了提高反坦克导弹在复杂背景下的目标识别能力，可利用目标和背景的偏振特性差异实现目标探测和识别。采用激光主动偏振成像方法获取车辆目标在无背景、草地背景、混凝土背景和沙土背景4种典型背景下的强度图像和偏振图像，比较分析两类图像的边缘强度、清晰度和空间频率，结果表明，偏振图像的边缘和细节特征比强度图像更好，有利于在复杂背景中识别车辆目标。激光主动偏振成像方法对提高反坦克导弹在复杂地物背景下的目标识别能力有重要意义。

In order to improve the target identification capability of the anti-tank missiles, the difference in polarization properties of the target and the background can be utilized to realize target detection and recognition.The intensity images and polarization images of the armored vehicles in four different environment backgrounds, such as no background, grass background, concrete background, and sandy background, are obtained by using the active laser polarization imaging technology. All these acquired intensity and polarization images are compared and analyzed in terms of edge intensity, image definition and spatial frequency, respectively. The results show that the polarization images have better edge and detail characteristics than the intensity images, which is conducive to the vehicle target recognition under complex background. The active laser polarization imaging technology will play an important role in promoting the target recognition capability of anti-tank missiles.