水下光电成像系统计算机仿真

Computer Simulation for Underwater Photoelectric Imaging System

为进行水下目标探测,该文针对Jaffe模型的不足,利用小角度近似原理,建立了水下光电成像系统的理论模型。考虑散射光的影响,给出了给定距离处的水下成像面各像素的信号辐射量的计算方法和对比度模型。对常规激光助视水下成像探测系统进行了仿真,研究了光源系统和接受系统的距离与成像对比度的关系。与Jaffe模型相比,该文所建模型中变量的物理意义更加明确,而仿真结果与其类似,证明该文所述方法的正确性。

In view of the shortcomings of the Jaffe model,a theoretical model of underwater photoelectric imaging system is established for underwater target detection using the small angle approximation principle.Considering the influence of scatted light,the calculation method of signal radiation quantity and the contrast model of pixels in underwater imaging plane of a given distance is proposed.An underwater imaging detection system with extra light source is simulated.The relationship of the distances between the light source system and the acceptance system and the image contrast is researched.Compared with the Jaffe model,the physical meaning of the variables in the proposed model is clearer,and the simulation results are similar,which proves the correctness of the proposed method.