临近空间平台探测导弹尾焰红外辐射算法研究

Algorithm of Detecting Infrared Radiation of Missile Plume via Near Space Platform

针对当前平均透过率计算方法在临近空间探测弹道导弹尾焰辐射衰减中的不足,建立了以波数η为参量的辐射传输算法;利用辐射传输程序Pc Modwin对大气中H2O,CO2,O3、气溶胶等因子的导弹尾焰红外辐射衰减能力进行了仿真,通过仿真数据并结合数学算法,采用多元统计分析的方法对结果进行分析。其结果与平均透过率方法相比具有较高的吻合度,同时该算法稳定性更高,计算过程更简单,实时性更好,具有很高的精度和可行性。

In order to rectify the shortcomings of the average transmittance calculation method in near space to detect missile plume radiative attenuation, a radiative transfer algorithm is built by using wave- number η as a parameter. The radiative transfer program PcModwinis used to simulate the attenuation missile plume by water, carbon dioxide, ozone and aerosol in air. Through the simulation data and combining the mathematical algorithm, the multivariate analysis method is adopted to analyze the simulation data. The result has a high degree of agreement when compared to the average transmission method. However, the algorithm is more stable and the calculation process is easier and has better real-time and high precision and feasibility.