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2fsk

于 2014-12-22 发布 文件大小:4KB
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  2FSK是利用数字基带信号控制在波的频率来传送信息。经过调制后的2FSK数字信号通过两个频率不同的带通滤波器f1、f2滤出不需要的信号,然后再将这两种经过滤波的信号分别通过包络检波器检波,最后将两种信号同时输入到抽样判决器同时外加抽样脉冲,最后解调出来的信号就是调制前的输入信号。(gudi hduidf hdag sdd w)

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