光电跟踪系统经常会遇到各种复杂环境，如导弹尾焰、相似目标的出现等，这就导致仅仅依赖跟踪算法的优化无法解决遇到的上述问题。对多个跟踪策略进行优化研究，采用归一化相关对遮挡进行判断，并提出双波门跟踪和航迹滤波的处理算法。实验证明，经过优化改进后可以稳定跟踪复杂环境下的目标，提高了跟踪的鲁棒性。

Opto-electronic tracking system ofter encounters various complex environments，such as missile tail flame，the appearance of similar targets，etc.，which leads to the situation that the improvement of tracking algorithm alone can't solve the above problems. The optimization research on various tracking strategies is carried out in this paper. The normalized correlation to judge the occlusion is adopted，and the double-waved gate tracking and track filitering is proposed. Experiments show that after optimization and improvement，the target can be tracked stably in the complex environment， which greatly improves the robustness of target tracking.