摘要
脉位调制（PPM）光通信的时隙同步器可用数字锁相环来实现，文中介绍此锁相环的相关式数字滤波器（DLF）原理及基于可编程逻辑器件（EPLD）的数控振荡器（DCO）原理。对环路进行了计算机模拟，表明这种时隙同步器是具有优良的抗噪性能和快速同步能力的。
The slot synchronizer of Pulse Position Modulation (PPM) laser communication system can be implemented with Digital Phase Lock Loop(DPLL). We here present the theory of relational Digital Loop Filter (DLF) employed in this phase lock loop and the theory of Digital Control Oscillator (DCO) based on Erasable Programmable Logic device (EPLD). Computer simulation was conducted, performance analyses is presented as a form of theoretical analyses and experiment results which show good anti-noise performance and rapid synchronization ability.
出处
《光通信技术》
CSCD
北大核心
1998年第3期211-215,共5页
Optical Communication Technology
