应用于被动氢钟的简单滤波器实现

摘要

In digital servo circuit of passive hydrogen maser, FPGA is used as digital signal processing for the error signal. A simple filter is designed,and compared with classic FIR filter,it saves a large resource of FPGA,and it is better than the traditional filter in performance, and is suitable for application in passive hydrogen maser.%在被动型氢原子钟数字伺服电路中,使用FPGA对误差信号进行数字信号处理.设计了一种简单的低通滤波器,与传统的FIR滤波器相比,节省了FPGA的使用资源,并且性能优于传统滤波器,能够很好地应用于被动型氢钟.