Research of Computer Assisted Astronomical Positioning Algorithm

The key of astronomical navigation positioning algorithm is the artificial look-up table and calculation, but also ship´s position can be obtained through mapping, it is not only time-consuming but also laborious. Positioning measurement is usually required a few dozen minutes once a time, seriously affected the positioning accuracy and speed, but there are still calculating the look-up table interpolation error, affect positioning accuracy. In this paper, astronomical positioning algorithm based on the International Nautical Almanac, can be easily achieved by computer; it only needs a few seconds, can greatly improve the real-time and accuracy of positioning. Computer technology applies to astronomical navigation, so that the oldest astronomical navigation displays a new vitality.