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一、引言雷达引信是导弹系统中的一个重要组成部分,其功用是当导弹接近目标附近时,在引信对目标有效作用区,发出引爆指令,完成导弹摧毁目标的任务。引信发出引爆指令的区域应与引信有效作用区相重合,这是雷达引信与一般雷达有本质区别的特殊要求,相重合的程度是考核引信效率的指标。评定导弹武器系统的主要指标是导弹对目标的杀伤概率,而在给定的导引精度、战斗部及目标条件下,导引系统正常工作时,导弹的杀伤概率将主要取决于引信效率。引信效率是引信的主要战术技术特性,因而研究和鉴定引信效率的试验手段和方法则是雷达引信研究设计中极为重要的环节。本文在论述引信物理模拟试验的意义及一般试验方法的基础上,着重介绍采用数字式变频装置进行多普勒雷达引信动态模拟试验的方法,这是数字技术在引信模拟试验中的应用。实践表明,这是一种简便有效,具有实用价值而技术经济效果较好的引信模拟试验方法。
I. INTRODUCTION Radar fuze is an important part of the missile system. Its function is to issue a command for detonating and to accomplish the mission of destroying the target in the effective area of the target when the missile approaches the target. Fuze issued detonation command area should be coincided with the effective area of fuze, which is the fundamental difference between the radar fuze and general radar special requirements, the level of coincidence is an indicator of the efficiency of the test fuze. The main index for evaluating a missile weapon system is the probability that the missile will kill the target. However, under normal guidance accuracy, warhead and target conditions, the missile’s kill probability will mainly depend on the fuze efficiency. Fuze efficiency is the main tactical and technical characteristics of fuses. Therefore, the means and methods of researching and appraising the efficiency of fuze are extremely important links in the design of radar fuze. Based on the significance of the fuze physics simulation test and the general test methods, this article focuses on the method of digital simulation of the Doppler radar fuze using the digital frequency conversion device. This is the application of digital technology in the fuze simulation test. Practice shows that this is a simple and effective, practical value of the technical and economic results of a good fuze simulation test method.