本文从空对面和面对面战术导弹所遇到的问题开始讨论。为了解决这些问题,本文对相干雷达较之于非相干雷达的优点作了说明。对导弹飞行过程中的搜索、截获,制导等有关的问题作了新的研究。并且对在导弹末段飞行段,采用相干制导的特有好处作出了评论。示出了一个实际的主动式导引头的照片,并对其飞行试验结果做出了评价。 This article starts with a discussion of the problems encountered by air-to-surface and face-to-face tactical missiles. In order to solve these problems, this paper describes the advantages of coherent radar compared to incoherent radar. The research on the search, interception, guidance and so on during the flight of the missile made a new research. Commented on the unique benefits of coherent guidance in the final flight segment of the missile. A photograph of an actual active seeker is shown and the results of his flight test are evaluated.