The Calculation of Computer Assisted Sun Shift Line Positioning
2013
As the most important marine reserved system, astronomical positioning has incomparable advantages. In this paper, according to the basic principle of the sun shift line positioning, using the spherical triangle derives the mathematical model of the sun shift line positioning by observing the sun on the ship and then using the VB language works out the program of the sun shift line positioning. At last, the computer technique is applied to celestial navigation and is able to calculate the complex equations quickly. Through the practice, computer aided positioning not only meet the need of the navigation requirement, but also shorten the calculation time. Keywords—celestial navigation, the sun shift line positioning, computer aided positioning
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