论述了综合判别函数 (SDF)的基本理论和光学实现途径 ,提出了一种基于综合判别相关器的导弹末制导系统。该系统具有光学系统运算速度快 ,对畸变目标识别能力高等优点 ,在导弹原有惯性制导系统上进行改进 ,成本低。分析和实验结果表明 ,这种基于综合判别相关器的导弹末制导系统具有并行处理速度快、识别率高的优点 ,有广阔的应用前景 This paper discusses the basic theory of integrated discriminant function (SDF) and the way of optical realization, and proposes a terminal guidance system based on synthetic discriminant correlator. The system has the advantages of fast calculation speed of the optical system and high recognition ability to the distorted target, and improves the original inertial guidance system of the missile with low cost. The analysis and experimental results show that the missile terminal guidance system based on the integrated discriminant correlator has the advantages of high parallel processing speed and high recognition rate, and has broad application prospects