【作者】 王启志； 王晓霞；

【Author】 Wang Qizhi, Wangxiaoxia(Huaqiao university,Quanzhou,362021)

【机构】 华侨大学机电及自动化学院；

【摘要】 分析调幅域解调的原理,本文主要阐述了载波分量被抑制的信号进行解调的乘积检波器,并利用labview设计出调制信号,可以在实验条件下观察到调制解调过程各相关部分的波形图,也可以在线设置各相关部分的参数,并观察这些参数对过程的影响。并设计带巴特沃斯的检波器来,设计出的波形图显示,解调达到了良好的效果。更多还原

【Abstract】 Analyzing the principle of amplitude modulation, this paper expatiates that multiplication detector demodulated signal which component of carrier wave is suppressed. Utilizing LabVIEW, modulatory signal and detector which carries butterworth, Cheybyshev lowpass filter is designed. The waveform graph of modulation and demodulation can be watched in process. The parameter can be adjusted on-line and the influence of the parameter can be observed The desiged figures demonstrate the demodulation get favorable effect.更多还原