【作者】 周爱； 陶世昆； 刘志海；

【Author】 ZHOU Ai,Tao Shikun, LIU Zhihai (Department of Opto-electronic, School of Science, Harbin Engineering University, Harbin 150001)

【机构】 哈尔滨工程大学理学院；

【摘要】 脉冲频率调制(PFMpulsefrequencymodulation)方式是目前模拟信号传输中传输质量较高的一种方式,本文对利用“光通信实验系统”实现模拟信号的脉冲频率调制作了较为详细地介绍。通过简单的实验操作,在实验室中演示了光纤通信中模拟信号的脉冲频率调制。本文从实验原理和实验过程两方面介绍了脉冲频率调制。通过观察不同输入条件下得到的实验结果,可以对脉冲频率调制过程有更深刻的了解。更多还原

【Abstract】 Pulse frequency modulation is a kind of analog signal transmission method with goodquality. The realization of PFM (pulse frequency modulation) of analog signal by using “opticalcommunications demonstration system” is reported in detail in this paper. The PFM of analogsignal in optical fiber communication is demonstrated by simple operation in the laboratory. ThePFM from both experimental principle and operation are introduced in this paper. Readers canhave even profounder comprehension of PFM, by observing the experiment results of differentinput.更多还原