| 一种FSK信号调制解调电路的设计 |
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| 引用本文： | 郭颖娜.一种FSK信号调制解调电路的设计[J].现代电子技术,2006,29(1):138-139,144. |
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| 作者姓名： | 郭颖娜 |
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| 作者单位： | 西安石油大学,电子工程学院,陕西,西安,710065 |
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| 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。
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| 关 键 词： | 电力线载波通信 FSK 锁相环芯片 调制 解调 |
| 文章编号： | 1004-373X（2006）01-138-02 |
| 收稿时间： | 2005-10-24 |
| 修稿时间： | 2005-10-24 |
A Method of Design for FSK Modem |
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| GUO Yingna.A Method of Design for FSK Modem[J].Modern Electronic Technique,2006,29(1):138-139,144. |
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| Authors: | GUO Yingna |
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| Abstract: | This paper describes a method of design for FSK modem.Adopting the phaselocked loop chip CD4046 at the sendingend 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 filter circuit are used to recover their baseband signal.This kind of circuit has the advantage of simple structure,cheap cost and being reliable work,and applicable for the lowspeed power line carrier communication. |
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| Keywords: | power line carrier communication FSK phase lock loop modulation demodulation |
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