超音速飞行条件下红外成像探测系统受到气动光学效应影响, 其图像畸变和模糊退化问题十分严重, 严重影响了红外制导系统的制导精度。常规的气动光学效应模拟仿真研究存在大数据量计算和非连续仿真问题, 不能满足地面仿真的实时性需要。提出了基于高速湍流统计模型的快速仿真算法, 用于气动退化图像实时复原方法和算法研究。根据本文提出的算法仿真得到的退化图像与实际的气动退化图像相似度较高, 并且模型实现简单, 能够满足地面实时仿真的需要。

Infrared imaging detection system has a great problem of distortion and blurring for the reason of aero optical effects in supersonic flight and resulted in low guidance precision for infrared guidance system. The custom research for aero optical effects could not provide a method for real time simulation for a huge calculation. This paper proposed a new real time simulation method based on high speed turbulent statistical model, which is used to study the degradation image restoration caused by aero optical effects. The simulation result shows that the proposed method has good similarity for real degradation image, and the model is simple to be implemented, which can satisfy the need of real time ground simulation.