Software Development on Computing the Astronomical Vessel Position

• Main Authors: Tsung-Hsuan Hsieh, 謝宗軒
• Other Authors: Chih-Li Chen
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/48400487505465204754

碩士 === 國立臺灣海洋大學 === 商船學系所 === 95 === One of the important issues for navigators is determination of the astronomical vessel position (AVP) on a daily basis during each voyage. However, commonly approaches are necessary to take a lot of time and limited the tabular precision. In addition, most relevant AVP computational softwares are merely using intercept method. These conditions initiated to develop AVP software to fix the problems of the AVP. In this thesis, many softwares, included the Observed Altitude Software (ObsAltS), Running Fix Software (RunFixS), Revised Intercept Method Software (RIMS-1, RIMS-2, RIMS-3), Spherical Triangle Method Software (STMS) and Simultaneous Equal-altitude Equations Method Software (SEEMS) are developed by using MATLAB to tackle the problems of the AVP. The advantages of using these softwares are accurate, rapid and simple. Diagrams are provided to define computing procedures and formulates. Besides, benchmark examples of classical text book are included to demonstrate these developed sfotwares. Finally, several concrete suggestions are also proposed to base on AVP.