檢視正交幅度调制的原始碼

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|<center>'''正交幅度调制'''<br><img
src=" https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fbkimg.cdn.bcebos.com%2Fpic%2F472309f7905298229bfc4266d0ca7bcb0b46d44c&refer=http%3A%2F%2Fbkimg.cdn.bcebos.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=auto?sec=1671018416&t=ef6ee9e64a27c9c6a22aecf4c4d6d325" width="280"></center><small>  圖片來自百度</small> 
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'''正交幅度调制'''（QAM，Quadrature Amplitude Modulation）是一种在两个正交载波上进行幅度调制的调制方式。这两个载波通常是相位差为90度（π/2）的[[正弦波]]，因此被称作正交载波。这种调制方式因此而得名。

*中文名:[[正交幅度调制]]

*外文名:QAM

*类    型:幅度调制的调制方式

*相位差:90度（π/2）的正弦波

*别    名:正交载波

*常见形式:16-QAM、64-QAM、256-QAM