分析了单陀螺连续旋转寻北方法的原理,指出陀螺的常值漂移可以被积分平滑掉,不影响寻北精度。但陀螺随机游走仍然会影响寻北精度,并推导出了相应误差公式,得出随机游走系数、寻北时间和陀螺寻北仪所处方位都会影响寻北精度的结论,并求出陀螺寻北仪最佳寻北方位和应避免的寻北方位。最后通过三组数值仿真验证了所提出观点的正确性。

The principle of the single gyro continuous rotation north seeking method was analyzed in this article to point out that the constant gyro drift could be smoothed out by integral which did not affect the precision of north seeking. But the random migration of gyro would still affect the accuracy of the north seeking. The corresponding error formula was derived and it came to the conclusion that the random migration coefficient, north seeking time and the precision of gyro north seeker would affect north seeking accuracy. The optimal north seeking position of the gyro north seeker and the north seeking position that should be avoided were calculated Finally, the correctness of the proposed view was verified by three groups of numerical simulation.