说明：  高频实验Multisim仿真：一、混频器（原理图、信号输入输出波形与频率）二、调幅波的解调（原理图及全载波调幅信号的解调）三、惰性失真及底部切削失真
(Multisim simulation of high frequency experiment: 1. Mixer (schematic diagram, signal input and output waveform and frequency) 2. Demodulation of amplitude modulation wave (schematic diagram and demodulation of full-carrier amplitude modulation signal) 3. Inert distortion and bottom cutting distortion)