摘要
为改进时间统一系统鉴相的稳定性,提出一种基于自适应滤波的相位起伏控制方法。采用Widrow-Hoff最小均方算法设定后验滤波阈值,得到同步于GPS标准信号的频率。通过理论分析和仿真实验对时统系统输出信号的相位稳定性进行了验证。
A phase fluctuation control method based on adaptive filtering is put forward to improve the phase discrimination stability in timing system. The posterior filtering threshold value is set by means of Widrow-Hoff least mean square algorithm, and the frequency synchronized to GPS standard signal is obtained. Theoretical analysis and simulation are adopted to verify the phase stability of the output signal in timing system.
出处
《计测技术》
2013年第3期13-15,共3页
Metrology & Measurement Technology
关键词
自适应滤波
相位起伏
时间统一
adaptive fihering
phase fluctuation
timing system
