新型氢频标的接收和锁相系统

RECEIVING AND PHASE-LOCKED LOOP SYSTEM USED FOR A NEW TYPE OF H-MASER FREQUENCY STANDARD

本文介绍上海天文台氢频标的接收和锁相系统的原理,它的关键部件的设计、框图、指标和实际使用中取得的结果。

In this paper, we give a brief description of the principle of rcceiving and phase-locked loop system of H-frequency standard at Shanghai Observatory, and introduce in detail to the design, block diagram, property of main unit of the system. The results obtained with the system used in NO. 7 H-frequency standard are also introduced in this paper.