摘要
介绍了一种FSK信号调制解调电路的设计思想,发送端采用锁相环芯片CD4046实现了基带信号的FSK调制,接收端采用普通鉴频法进行解调,将FSK信号转换为ASK信号,并采用检波和低通滤波电路恢复出其基带信号。该电路具有结构简单、成本低廉、工作可靠等优点,可适用于低速电力线载波通信中。
This paper describes a method of design for FSK modem. Adopting the phase- locked loop chip CD4046 at the sending - end to realize FSK modulation for baseband signal, and the frequency discrimination method is adopted to transform FSK signal into ASK signal at the receiving end. The detection circuit and low pass circuit has the advantage of simple structure, cheap cost and being communication. filter circuit are used to recover reliable work, and applicable for their baseband signal. This kind of the low - speed power line carrier
出处
《现代电子技术》
2006年第1期138-139,144,共3页
Modern Electronics Technique
关键词
电力线载波通信
FSK
锁相环芯片
调制
解调
power line carrier communication
FSK
phase lock loop
modulation
demodulation
作者简介
郭颖娜 女，1972年出生，2001年毕业于西安科技学院自动化系电力系统自动化专业，硕士。现在西安石油大学从事电力系统自动化教学研究工作。
