远程双曲线导航定位计算方法  

COMPUTATION METHOD FOR POSITIONING BY LONG-RANGEHYPERBOLIC NAVIGATION SYSTEM

作　　者：华棠 

机构地区：[1]天津海洋测绘研究所

出　　处：《测绘学报》1990年第3期179-186,共8页Acta Geodaetica et Cartographica Sinica

摘　　要：本文提出了一种远程双曲线导航的定位计算方法。主要论点是椭球面双曲线可以把球面双曲线通过大椭圆法应用迭代计算获得，并将所有计算置于同一个以地心纬度表示的球面上。不仅解决了不能直接求出椭球面双曲线的困难，而且减少了迭代次数并提高了计算精度。本方法可制成软件用于远洋航海或海洋测量的定位，据此制作的远程双曲线导航图已投入使用。: A computation method for positioning by long-range hyperbolic navigation system is proposed in this paper. The main argument is that ellipsoidal hyerbola can be obtained from spherical hyperbola through great ellipse by using iteration. The entire computation proceeding is performed on a sphere expressed by geocentric latitude. By this method, not only does it overcome the difficulty of directly obtaining ellipsoidal hyperbola, but it also leads to the raduction of the number of iterations and the increase in accuracy. This mathod allows software to be made which can be used for ocean going navigation and positioning in sea surveying. The long-range hyperbolic navigation charts prepared according to this method have been put into operational use.

关 键 词：导航 远程 双曲线 定位 计算法 

分 类 号：U675.7[交通运输工程—船舶及航道工程]