主要分析对流层的折射效应对超视距雷达信号定位的影响，并且给出相应的折射误差图（仰角误差和距离误差）；
The refraction effect on positioning of the over-the-horizon radar signal is analyzed. The charts of the refractive error(elevation error and range error) are also given.
卫星电视信号接收天线定位的主要参数是方位角、仰角和极化角。
The main parameters of the satellite TV signal receiving antenna positioning are the azimuth, the elevation angle and polarization angle.
但由于对流层中的折射效应，定位系统所测目标的仰角、距离等参量均存在一定的折射误差。
However because of the refraction effect in the troposphere there is refractive error in the parameters measured in positioning system.
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