基于V/F转换的2FSK调制电路设计  

Circuit Design of 2FSK Modulation Based on V-F Transformation

作　　者：胡之惠[1] 李渊[1] 施瑛[1] 王利平[1] 

机构地区：[1]上海电机学院电子信息学院,上海200240

出　　处：《上海电机学院学报》2015年第1期19-23,共5页Journal of Shanghai Dianji University

基　　金：国家自然科学基金青年基金项目资助(61201258)

摘　　要：为实现无外加频率源的2FSK调制,根据2FSK调制原理及V-F转换特性,对V-F转换电路进行改进,增加波形变换电路。实验结果表明,对应基带信号"1"和"0",调制电路能产生两种稳定频率的正弦波。该电路设计在无外加频率源的情况下,实现了相位连续的2FSK调制,具有较强的实用性。To produce 2FSK signals without applying a frequency source, a V-F transforma- tion circuit is improved, and a waveform transformation circuit is added based on the principle of 2FSK modulation and performance of V-F transformation. Experimental results show that the cir- cuit can produce two kinds of sine signals with different frequencies according to whether a 1 or a 0 is transmitted. The circuit design is practical for continuous phase 2FSK modulation without a frequency source.

关 键 词：V/F转换 二进制频移键控 调制电路 

分 类 号：TN761.8[电子电信—电路与系统]