说明：这是单边带调制源码，求消息信号和已调信号的频谱。
This is a single sideband modulation source, for the signal and the signal has been modulated spectrum.
在公司实体购买药物之前，你应该确定药物调制的特定场所是有满意检查结果的已注册的外包场所。
Before purchasing drugs from a corporate entity, you should determine that the specific facility in which the drugs are compounded is a registered outsourcing facility with a satisfactory inspection.
用射频频谱分析仪观测一个已调波的频谱成分，记录上边带或下边带中各条谱线的幅度值，从而可以根据有关算式计算出调制信号（音频信号）的失真度。
Spectrum of the amplitude-modulated wave is observed by a radio frequency spectrum analyzer and amplitude values of every spectrum are recorded at the upper sideband or lower sideband.
应用推荐