A Method for User Self-Compensation of Atmospheric Refraction-Induced Errors in Satellite-to-Ground Laser One-Way Positioning and Timing

Abstract

Satellite-to-ground laser one-way timing and positioning technology, owing to its unique advantages including high precision and robust anti-interference performance, plays a key role in high-precision navigation. However, unlike two-way transmission, this technology cannot satisfy the condition of link symmetry and reciprocity. Consequently, the timing and positioning errors introduced by atmospheric refraction cannot be mitigated through differential techniques. To address this issue, this paper proposes a user self-compensation method. By integrating real-time measured meteorological data with precise ephemerides, this approach enables users to autonomously calculate and compensate for timing and positioning errors. The aim is to achieve timing accuracy at the picosecond level and positioning accuracy at the millimeter level.