摘要
RTK technology, also known as dynamic real-time differential carrier phase technology to provide real-time measurement points in the three-dimensional coordinates of the specified coordinates, and to achieve centimeter-level accuracy, through the GPS RTK technology in the control measurement, digital mapping and other projects in the basic applications, the dynamic characteristics and use of GPS has been further recognized that the technology has been widely used in topographic survey, control survey,engineering survey, aerial photography and other fields.