Due to the strong spatial inhomogeneity and temporal variability of atmosphere, especially water vapor , accurate modeling of path delay in GPS signals is necessary for high -accuracy position.
由于大气分布不均和不断的变化，尤其是大气中的水汽影响，使建立无线电信号路径延迟的精确模型在GPS高精度定位中非常必要。
The beam deflection method was employed to determine the temporal response and position sensitive properties of the PSD.
采用光束偏转法对其时间响应特性和位置敏感特性进行测定。
The beam deflection method was employed to determine the temporal response and position sensitive properties of the PSD.
采用光束偏转法对其时间响应特性和位置敏感特性进行测定。
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