基于模糊函数的雷达辐射源个体识别

Specific Emitter Identification Based on Ambiguity Function

雷达辐射源个体识别是现代电子情报和电子支援系统的重要研究内容。本文在辐射源个体特征分析的基础上,提出了一种基于模糊函数的辐射源个体识别算法。针对模糊函数的冗余性,分别利用模糊函数切片和局部模糊函数切片表征雷达的细微差异与个体特征,并推导了局部模糊函数切片的快速算法。仿真实验验证了提出算法对于辐射源个体特征提取和识别的可行性和有效性。

Specific emitter identification is the key research fields of modern electronic intelligence systems and electronic support measurement systems.Based on the analysis of individual features of radar emitter,a specific emitter identification algorithm is proposed based on ambiguity function.Considering the redundancy of ambiguity function,the slices of ambiguity function and localized ambiguity function are used to represent the individual features,such as pulse envelope,phase noise and radiated emission.Then the fast algorithm for localized ambiguity function slices is deduced.Finally,Simulation experiments verify the feasibility and validity of the proposed methods.