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ASK---FSK---PSK

于 2013-04-08 发布 文件大小:491KB
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  数字调制技术的发展日新月异现如今信息技术不断的推陈出新,信息的传输及通信起着支撑作用。而对于信息的传输,数字通信已经成为重要的手段。因此,数字信号的调制就显得非常重要。数字调制是通信系统中最为重要的环节之一,而实现数字调制需要的方法就需要用键控法来实现,比如可以对载波的振幅、频率和相位进行键控。(ASK , FSK , PSK modulation and demodulation of the simulation comparison )

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