GPS是全球定位系统的简称，是利用导航卫星进行测时和测距的系统。
GPS is the abbreviation of Global Positioning System, which USES the satellite to navigate and measure location.
该算法的主要应用领域为卫星定位信号和直序扩频测距信号PN码相位的精确测量。
The algorithm is applicable to precise measuring of the PN code phase of satellite positioning signals and spread-spectrum ranging signals.
GPS35卫星是全球定位系统卫星星座中的一颗卫星，它的对地一侧安装了激光后向反射器，可实施激光测距观测。
GPS35 satellite is one of the constellations of the Global Position System, it was equipped with laser retrorefractors toward the earth and can be observed with SLR.
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