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本文是根据短基线干涉仪体制和具体指标要求,对视差问题进行了理论上的探讨,提出了进行视差修正的修正方法,并进行了实际计算。从而证实:在一定的条件下实际上方向余弦存在着不可忽视的视差,因此,必须予以修正。本文推导出进行视差修正的精确公式和近似公式,在对视差修正要求更高时,则必须采用精确计算公式以得到精度高的修正值。文中也对视差修正的精度进行了分析和计算,证明这样的修正方法已足以达到修正的精度要求。
This article is based on the short baseline interferometer system and the requirements of specific indicators, the parallax problem was discussed in theory, proposed correction of parallax correction method, and the actual calculation. Thus it is confirmed that under certain conditions, the actual direction cosine has a parallax that can not be neglected. Therefore, it must be corrected. In this paper, we derive the exact formulas and approximate formulas for correcting the parallax. When the parallax correction is more demanding, we must adopt the accurate calculation formula to get the accurate correction value. The accuracy of parallax correction is also analyzed and calculated in this paper, which proves that the correction method is enough to meet the accuracy requirements of the correction.