一种基于主动相位噪声补偿的星地光频比对系统及方法
By using active phase noise compensation technology to reproduce optical frequency signals on the satellite, the problem of insufficient optical frequency transmission accuracy in satellite-to-ground optical clock comparison is solved, achieving high-precision optical clock comparison and supporting global optical clock comparison.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAN INSTITUE OF SPACE RADIO TECH
- Filing Date
- 2023-10-20
- Publication Date
- 2026-07-17
AI Technical Summary
Existing space-to-ground time and frequency synchronization links cannot achieve optical frequency transmission and comparison. The frequency transmission accuracy of traditional methods is insufficient and cannot meet the requirements of high-precision optical clock comparison.
A satellite-to-ground optical frequency comparison system based on active phase noise compensation is adopted. An optical frequency comb is used to lock a narrow linewidth laser onto an optical clock. Through active phase noise compensation technology, an optical frequency signal with the same frequency stability and accuracy as the ground is reproduced on the satellite, thus realizing the comparison of the optical clock.
It enables optical clock comparison between relatively stationary satellites and ground systems, providing technical support for global optical clock comparison and improving the accuracy and stability of optical clock comparison.
Smart Images
Figure CN117595930B_ABST