基于双台链罗兰C导航仪的双曲线导航定位算法  

THE CALCULATION RESEARCH OF HYPERBOLIC NAVIGATION POSITION FIXING BASED ON DOUBLE STATION CHAINS LORAN C NAVIGATOR

作　　者：闵思鹤[1] 王甲池[1] 江太辉[1] 田震华 

机构地区：[1]五邑大学信息学院,江门529020 [2]广州海格通信有限公司,广州510656

出　　处：《电子与信息学报》2003年第5期700-703,共4页Journal of Electronics & Information Technology

基　　金：广东省自然科学基金(编号:000872)

摘　　要：该文提出了一种直接解法与牛顿迭代计算相结合的方法来求解船位。首先用直接解法在球面上求得组合双曲线方程组的一个解,当作船位的概位解,然后应用牛顿迭代法,求解△φ,△λ,当此差值小于某个预先给定的收敛门限ε时,则所求船位为真实解。一般只要选代二、三次就可得到秒级精度的船位解。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.

关 键 词：双台链罗兰C导航仪 双曲线导航 定位算法 牛顿选代法 

分 类 号：TN966[电子电信—信号与信息处理]