研究一种基于GPS信号的二级频标驯服技术,通过相位差测量、秒抖动处理和频率校准等环节实现了时钟驯服。该技术将GPS信号的长期稳定度和准确度与二级频标的短期稳定度相结合,得到性能优良的频率源。
A study on disciplined technology of second-class frequency standards based on GPS signal is given.The technique achieves clock discipline through phase error measurement,pulse noise and frequency calibration.The technique can combine short-term stability of frequency standards with GPS timing signal's long-term stability and accuracy.Thus frequency source with high accuracy can be obtained.