利用光频梳实现运动平台间高精度时间同步的方法
By introducing a speed correction term during data processing to eliminate the influence of Doppler frequency shift, high-precision time synchronization of optical frequency combs between motion platforms was achieved, thus solving the problem of time synchronization error between motion platforms.
CN117579206BActive Publication Date: 2026-07-17SHANGHAI JIAOTONG UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI JIAOTONG UNIV
- Filing Date
- 2022-08-08
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
When synchronizing time and frequency between moving platforms, the Doppler effect caused by the high speed of movement between platforms affects the repetition frequency of the optical frequency comb signal, resulting in time synchronization error.
Method used
By introducing a speed correction term during data processing, the influence of Doppler frequency shift on the repetition frequency of the optical frequency comb signal is eliminated, and high-precision time synchronization between platforms is achieved using the optical frequency comb.
Benefits of technology
It improves the accuracy of optical frequency comb time synchronization between motion platforms and eliminates time synchronization errors caused by Doppler frequency shift.
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Smart Images
Figure CN117579206B_ABST
Abstract
一种利用光频梳实现运动平台间高精度时间同步的方法，该方法通过在线性光采样探测的数据处理过程中引入速度修正项，可以消除平台运动带来的多普勒频移对所传递光频梳信号重复频率的影响，进而消除光频梳信号重复频率改变所产生的时间同步误差，提高基于光频梳的运动平台间光频梳时间同步精度。
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