Ding Deshen
Abstract
GPS control network in the united measurable standards point,based on the use of GPS to achieve the level of elevation of the GPS network to normal earth high conversion,the precision is mainly affected by the fitting of the geoid,and GPS locations of known elevation points error of the earth or high impact.
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GPS control network in the united measurable standards point,based on the use of GPS to achieve the level of elevation of the GPS network to normal earth high conversion,the precision is mainly affected by the fitting of the geoid,and GPS locations of known elevation points error of the earth or high impact.
Key concepts: Global Positioning System, Elevation (ballistics), Geodesy, Geoid, Control network, Geography, Remote sensing, Undulation of the geoid