The precision of mechanical gyrocompass goes down when the north seeking is in short time,and the flexibility of the environment shifting is not good.

• 传统吊带式陀螺罗盘系统短时间快速寻北精度较低,对环境的适应能力差。为提高陀螺罗盘寻北性能,提出使用单激光陀螺作为测量元件的二位置罗盘寻北方案。