轻型鱼雷被动自导问题分析及解决措施

针对轻型鱼雷实航试验中被动自导难以跟踪到目标，其功能未得到充分考核的问题，通过对实航中故障现象和性能参数进行分析比较，找出了问题产生的原因，即试验中的电干扰导致被动自导难以跟踪目标，幅度门非正常开启造成被动跟踪过程中丢失目标。经采取调整接收机相关参数、在发射机正负电源通路上增加电感以抑制雷内电干扰以及增加接收机被动幅度鉴别宽度等措施，解决了上述问题。试验结果表明，该措施可以满足被动自导功能及作用距离要求，同时改善了主动检测功能。

Analysis and Solution of Passive Homing Problem for Lightweight Torpedo

To solve the problem that passive homing of lightweight torpedo can not pursue target in sea trial, the fault in sea trial and the torpedo performance were analyzed and compared. It was found that the built-in electric interfere and the abnormal open- ing of amplitude gate resulted in not pursuing target and losing target in the passive pursuing process. Therefore, such measures as adjusting the related coefficient of receiver, adding an inductance in power supply circuit of transmitter, and increasing the width of passive amplitude discrimination were taken. The trial results show that these measures can improve the function of passive detection to meet the requirements for passive homing pursuit and homing range, and can simultaneously improve active detection of homing torpedo.