When this method is used in the calculation process,the influence of the fixed error can be eliminated and the influence of the accidental error can be maximally reduced, so that the estimated position will be nearst to the true position.

• 使用本法在计算过程中可以消除固定误差的影响,?K在最大限度内降低偶然误差的影响,求得最接近真船位的计算船位。