利用数字伺服实现被动型氢钟单频锁定

摘要

A digital servo used in single frequency modulation of passive hydrogen maser is introduced. Closed loop locked of the system has been done and the short-term frequency stability has been tested too. At end the influence on frequency stability of the bits of D/A has been analyzed.%介绍了一种用于被动型氢钟单频调制的数字伺服电路,实现了系统的锁定,测试了中短期稳定度.最后分析了D/A的位数对其稳定度的影响.