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针对机载光电系统理论与实际探测能力之间的较大差异及其作战能力发挥不充分等问题,分析得到了目标反射背景辐射的空间分布函数,并给出了具体量化方法,进而研究了目标本征辐射特性,建立了水平和俯仰面内的辐射强度包线模型;之后考虑各种作战因素,给出了机载光电系统角水平和角俯仰探测能力包线计算方程式;最后提出探测概率包线概念,得到了机载光电系统作用距离与探测概率关系,并定量分析了机载光电系统探测包线的概率特性。仿真结果表明,探测包线随目标速度、方位、俯仰的变化而实时变化;当满足一定的虚警概率和信噪比要求时,探测概率包线具有最佳探测点,这为充分发挥机载光电系统探测性能提供了理论参考。
Aiming at the big differences between theoretical and practical probing ability of airborne optoelectronic systems and their insufficient combat capability, the spatial distribution function of target reflected background radiation is analyzed and a specific quantitative method is given. Then, the target The model of the envelope of the radiation intensity in the horizontal and the elevation plane is established. Afterwards, considering the various operational factors, the calculation formula of the envelope level of the horizontal and the pitch detection of the airborne electro-optical system is given. Finally, Line concept, the relationship between the operating distance of airborne optoelectronic system and probing probability is obtained, and the probabilistic characteristics of probing envelope of the airborne optoelectronic system are quantitatively analyzed. The simulation results show that the detection envelope changes in real time with the changes of the target velocity, azimuth and elevation. When certain false alarm probability and signal-to-noise ratio are satisfied, the probing probability envelope has the best detection point. Photoelectric system detection performance provides a theoretical reference.