Abstract：This paper presents a method which links direct solution and Newton iterative method to calculate ship s position. First, a result of the combination hyperbolic equations is got using the direct solution on the sphere and is taken as the ship s approximate position. Then, Newton iterative method is applied to caculate △λ and AA. When △ψ and △λ are less than ε which is given as a convergent standard beforehand, the ship s position calculated is the correct one. In general, only iterating two or three times, the calculating accuracy is about one second.
. 基于双台链罗兰C导航仪的双曲线导航定位算法[J]. 电子与信息学报, 2003, 25(5): 700-703 .
Min Sihe①; Wang Jiachi①; Jiang Taihu①;i Tian Zhenhua②. The calculation research of hyperbolic navigation position fixing based on double station chains loran c navigator. , 2003, 25(5): 700-703 .
2003, Vol. 25 
