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Received:May 23, 2017 Revised:June 16, 2017
Received:May 23, 2017 Revised:June 16, 2017
中文摘要: 通过对地图投影的研究，确定了航母舰载预警机电子地图采用Gnomonic投影.进一步对该投影方式下长度和角度变形计算和分析，确定了航母舰载预警机电子地图的最大使用范围.针对Gnomonic地图投影地图标尺不能在地图上直接量算距离和方位的情况，给出了计算两点间距离和方位的地图标尺算法.同时对电子地图自动切换进行了研究.
Abstract:On the basis of research on map projection, this study selects Gnomonic projection to the electronic map of carrier-based early warning aircraft. By calculating and analyzing length and angle distortion of Gnomonic projection, the maximal range of the map of carrier-based early warning aircraft is established. To resolve problem of incorrect calculating length and angle with map ruler, it provides correct length and angle calculation between two points for map ruler. The automatic change of electronic map is also researched.
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引用文本：
盛大同,刘栋.关于航母舰载预警机的电子地图研究.计算机系统应用,2018,27(3):268-272
SHENG Da-Tong,LIU Dong.Technology Research on Electronic Map of Carrier-Based Early Warning Aircraft.COMPUTER SYSTEMS APPLICATIONS,2018,27(3):268-272
盛大同,刘栋.关于航母舰载预警机的电子地图研究.计算机系统应用,2018,27(3):268-272
SHENG Da-Tong,LIU Dong.Technology Research on Electronic Map of Carrier-Based Early Warning Aircraft.COMPUTER SYSTEMS APPLICATIONS,2018,27(3):268-272
