摘要
详细阐述了全数字BPSK调制解调器的原理 .对实现数字锁相环 (DPLL)所面临的各种问题 :误差信号提取、相位跟踪及环路滤波进行了详细的说明 .介绍了数字直接合成器 (DDS)、数字下变频器 (DDC)、数字滤波器等数字无线电经常用到的概念 .并使用复杂可编程器件 (CPLD) ,实现了高速率、全数字BPSK调制解调器的方法及仿真结果 .
We set forth the theory of digital BPSK modem and figured out the diversified problems of realizing digital phase locked loop(DPLL),for example, error signal distil,phase track and loop filter.We also introduced some concept of digital radio, including digital direction synthesizer (DDS) and digital down conversion (DDC) and digital filter.A method was desccribed, i.e. complex programmed logic device (CPLD) to realizes high speed,digital BPSK modem.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
2000年第2期60-63,共4页
Journal of Harbin Engineering University
