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2000国家大地坐标系是我国当前最新的国家大地坐标系,自2008年7月1日起,中国将全面启用2000国家大地坐标系,国家测绘局授权组织实施。目前在我国公路勘察设计行业,采用最多的是1980西安坐标系和1954年北京坐标系。随着公路勘察设计周期的缩短和机载激光技术广泛采用,如果继续采用以前的作业模式和坐标系统势必会延长生产周期,也会降低机载激光数据的精度,因此采用2000国家大地坐标系势在必行,本文主要讨论了采用机载激光技术进行公路勘测时采用2000国家大地坐标的应用技巧。
2000 National Geodetic Coordinate System is the latest national geodetic coordinate system in our country. Starting from July 1, 2008, China will fully enable the 2000 National Geodetic Coordinate System and the State Bureau of Surveying and Mapping authorized the organization and implementation. Currently in our country road survey and design industry, the most used is the 1980 Xi’an coordinate system and the 1954 Beijing coordinate system. With the shortening of road survey and design cycles and the widespread adoption of airborne laser technology, the continued adoption of previous operating modes and coordinate systems will inevitably prolong the production cycle and reduce the accuracy of airborne laser data. Therefore, using the 2000 National Geodetic System Potential Imperative, this article mainly discusses the use of airborne laser technology for road survey using 2000 national geodetic skills.