本文所涉及的近炸引信包括发射机和接收机。发射机以大量狭窄的波瓣形式发出光学辐射，接收机则接收由部分波瓣发出并由目标反射回来的光学辐射。接收机能够区别每一部分波瓣发出的反射辐射和由其它部分波瓣发出和反射的辐射。每一部分波瓣发出的辐射在接收机中逐一进行处理。 The near-fuze fuze involved in this paper includes the transmitter and the receiver. The transmitter emits optical radiation in the form of a large number of narrow lobes and the receiver receives the optical radiation emitted by some of the lobes and reflected by the target. The receiver is capable of distinguishing between the reflected radiation emitted by each part of the lobe and the radiation emitted and reflected by the other part of the lobe. The radiation from each lobe is processed one by one in the receiver.