为了使登陆艇驾驶员不丢失引导灯光信号并快速进舱, 需要光学引导系统的横纵向发散角都满足一定要求。将船舶运动理论应用于登陆舰光学引导系统发散角的分析, 根据5级海况下登陆舰的偏荡运动, 确定满足条件的横向发散角α不大于14°, 根据5级海况下登陆舰的摇荡运动, 确定满足条件的纵向发散角β不小于15°。研究结果可为相关工程应用提供一定参考。

In order to ensure the driver of landing boat to go into landing ship quickly by tracking the optical guidance signal all the time, the divergence angle of the optical guidance system must meet some requirements. Ship motion theory is applied to analyze the divergence angle of the optical guidance system on landing ship. Based on the yawing motion of landing ship under the fifth sea state level, we ascertain the lateral divergence angle α must be not more than 14°. Based on the swaying motion of landing ship under the fifth sea state level, we ascertain the longitudinal divergence angle β must be not less than 15°. Research results can provide some references for applying in engineering.