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Chinese Journal of Engineering Design  2003, Vol. 10 Issue (5): 299-302    DOI:
    
Research on arithmetic of coordinates transform ation in ECDIS
 XIA  Yi-Xing, HU  Li, ZHOU  Hong, WANG  Le-Yu
Institute of Advanced Digital Technology and Instrumentation,Zhejiang University,Hangzhou 310027,China
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Abstract  The arithmetic of coordinates transformation 1S one 0 the core techniques in the ECDIS electronic chart display and information system based on GPS(global position system ).For the complex traditional arithm etic that is difficult to be applied to practice,this paper presents arithmetic of the coordinates transform ation from geodetic coordinates to plane rectangular coordinates and screen coordinates.Especially,it presents contrary transformation from plane rectangular coordinates to geodetic coordinates based on sim ple iteration.The test results indicate that it provides a high precision.And it’S useful for reference to other navigation system.

Key wordselectronic chart display and information system      coordinates transform ation      Mercator mapping      geodetic coordinates      plane rectangular coordinates      screen coordinates     
Published: 28 October 2003
Cite this article:

XIA Yi-Xing, HU Li, ZHOU Hong, WANG Le-Yu. Research on arithmetic of coordinates transform ation in ECDIS. Chinese Journal of Engineering Design, 2003, 10(5): 299-302.

URL:

https://www.zjujournals.com/gcsjxb/     OR     https://www.zjujournals.com/gcsjxb/Y2003/V10/I5/299


电子海图应用系统中坐标变换算法的研究

在基于GPS定位技术的电子海图应用系统中,各种坐标体系之间的变换算法是其核心技术之一.由于传统的变换算法复杂,在实际工程应用中实现的难度较大.由此,给出实用的、可应用到系统中的完整的大地坐标到平面坐标以及平面坐标到屏幕坐标之间的正逆变换实现算法,尤其提出了基于简单迭代算法的大地坐标到平面坐标的逆变换公式,方便、精确地满足了电子海图应用系统的要求.经过软件测试,上述算法均可方便地得以实用.

关键词: 电子海图应用系统,  坐标变换,  墨卡托投影,  大地坐标,  平面坐标,  屏幕坐标 
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