The accuracy improvement on the astronomical refraction by applying mapping function is noticeable.
特别指出了映射函数方法对天文大气折射和光学波段测距精度的改进。
A new continued fraction form of the mapping function deduced from the generator function method is applied into both the atmospheric delay and the astronomical refraction.
介绍了由大气折射母函数方法引出的大气延迟新连分式映射函数和天文大气折射的映射函数方法。
In order to obtain higher measured accuracy of star's positions by the low-latitude meridian circle, it is needed to measure the astronomical refraction to the stars of different spectral types.
提出在低纬子午环上，对不同光谱型的天体测定出天文折射，以提高星位测定的精度。
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