主要讨论航空电子系统中的信息融合及在空战中的应用。介绍了信息融合的结构和一般方法，在综合应用场合，信息融合通常先进行同类信息融合，再进行不同类信息融合；在现代空战的应用中，信息融合可帮助分析、处理和综合各类信息源信息及人类专家知识。并结合空战中信息融合应用实例，讨论基于Ｋａｌｍａｎ滤波、模糊逻辑和专家系统的信息融合的设计及实现。 Mainly discusses the avionics system information fusion and its application in air combat. This paper introduces the structure and general methods of information fusion. In general applications, information fusion generally first conducts similar information fusion and then different types of information fusion. In modern air combat applications, information fusion can help to analyze, process and synthesize various kinds of information Source information and human expert knowledge. Combining with the application of information fusion in air combat, the design and implementation of information fusion based on Kalman filtering, fuzzy logic and expert system are discussed.