基于电磁引信原理的鱼雷过靶距离测量方法

针对当前鱼雷过靶距离的测量方法普遍采用被动测距，且存在操作不便、解算模型复杂和测试精度低等问题，提出了一种基于电磁引信原理的鱼雷过靶距离的测量方法，分析了电磁引信的主动测距原理，建立了相位特征与过靶距离的解算模型，给出了基于二分法原理的过靶距离数值求解过程，最后对本文提出的方法进行了水池试验。实测数据表明，在电磁引信的收发天线与目标（钢板）的距离为0．8-1．5m的条件下，绝对测距精度小于0．02m，相对测距精度小于2．5％，证明了该方法测试精度高且易于实现，具有较好的工程应用前景。

Active Measurement of Torpedo Missdistance Based on Electromagnetic Fuze

Torpedo missdistance is usually measured via passive ranging methods with inconvenient operation,compli-cated solution model and low measuring precision.In this paper,an active measuring method of torpedo missdistance is put forward based on electromagnetic fuze.The ranging principle of electromagnetic fuze is analyzed,the solution model of phase characteristic and missdistance is set up,and the numerical solution process of missdistance is given.In addition,a tank experiment is conducted.The measured data indicate that the absolute ranging precision is less than 0.02 m,and the relative ranging precision is less than 2.5% when the distance from transmitting/receiving antennas to target(steel plate) is within 0.8~1.5 m,which demonstrates high measuring precision and simple implementation of the pro-posed method.