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脉冲调制
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{| class="https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E8%84%89%E5%86%B2%E8%B0%83%E5%88%B6&step_word=&hs=0&pn=41&spn=0&di=7169026086108397569&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=225362217%2C2503154196&os=2895195507%2C1557327372&simid=4177001392%2C543430467&adpicid=0&lpn=0&ln=1469&fr=&fmq=1676802233283_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined©right=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=https%3A%2F%2Fss1.baidu.com%2F9vo3dSag_xI4khGko9WTAnF6hhy%2Fbaike%2Fw%3D268%3Bg%3D0%2Fsign%3Dd81a9a8f2e7f9e2f70351a0e270b8e19%2F35a85edf8db1cb1330c5147ad454564e92584b2e.jpg&fromurl=ippr_z2C%24qAzdH3FAzdH3Fkwthj_z%26e3Bkwt17_z%26e3Bv54AzdH3FetjoAzdH3F898nc9_z%26e3Bip4&gsm=1e&rpstart=0&rpnum=0&islist=&querylist=&nojc=undefined" style="float:right; margin: -10px 0px 10px 20px; text-align:left"|<center>'''脉冲调制'''<br><imgsrc="https://ss1.baidu.com/9vo3dSag_xI4khGko9WTAnF6hhy/baike/w=268;g=0/sign=d81a9a8f2e7f9e2f70351a0e270b8e19/35a85edf8db1cb1330c5147ad454564e92584b2e.jpg " width="280"></center><small> 圖片來自百度</small> |}
'''脉冲调制'''有两种含义。一是指脉冲本身的参数（幅度、宽度、相位）随信号发生变化的过程。[[脉冲]]幅度随信号变化，称为脉冲[[振幅调制]]；脉冲相位随信号变化，称为[[脉冲相位调制]]；同理还有[[脉冲宽度]]调制、[[双脉冲]]间隔调制、[[脉冲编码调制]]等。
4、脉冲编码调制主要经过3个过程：抽样、量化和编码。抽样过程将连续时间模拟信号变为离散时间、连续幅度的抽样信号，量化过程将抽样信号变为离散时间、离散幅度的数字信号，编码过程将量化后的信号编码成为一个二进制码组输出。
'''视频'''
'''脉冲宽带调制——PWM'''
[https://www.bilibili.com/video/BV18F411K7HD/ 哔哩哔哩]
==参考文献==
{{Reflist}}