GPS positioning technology has the advantages of high precision, high efficiency, and low cost, so that it has been widely used in the enhanced transformation and establishment of various types of land surveying and control networks, as well as in highway engineering measurement and the deformation measurement of large structures.

　　GPS characteristics

　　The main characteristics of the global positioning system: (1) all -weather; (2) global coverage; (3) three -dimensional faster time high accuracy; (4) fast saving and high efficiency: (5) wide multifunctional application; (6) simple operation is simple Essence

　　GPS function

　　The main purpose of the global positioning system: (1) Land applications mainly include vehicle navigation, emergency response, atmospheric physical observation, earth physical resource exploration, engineering measurement, deformation monitoring, crustal motion monitoring, municipal planning control, etc.; (2) marine application Including the best voyage measurement of ocean ships, real -time scheduling and navigation of ships, marine rescue, marine treasure detection, hydrogeological measurement, marine platform positioning, sea level lift monitoring, etc.; (3) aerospace applications, including aircraft navigation, aviation remote sensing State control, low -orbit satellite rails, missile guidance, aviation rescue and human spacecraft protection detection.

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