基于热物理仿真分析的红外点目标特征提取与识别

IR Point Target Feature Extraction and Recognition Based on Thermophysics Analysis

根据弹道中段空间目标和诱饵的表面温度分布规律，从热物理的角度分析了目标和诱饵的红外光谱辐射特性，指出了弹道中段目标和诱饵红外辐射特性的本质差别，并据此提出了红外目标识别中的特征基函数，用特征基函数构造红外点目标识别的四维特征矢量。仿真实验表明，这一特征矢量用于红外点目标识别非常成功。

In this paper,characteristics of IR radiation spectrum of target and decoy in space are discussed in detail using thermophysics theory based on their surface temperature field.The essential difference in IR radiation and mid trajactory target is pointed out and a fundamental feature function (FFF) of IR target recognition is extracted.A 4 dimention feature vector for IR point target recognition is constructed with FFF.Emulator experiment of IR point target recognition meets with success by using this feature vector.