Re: 請教一下 FM 及 AM 的問題
先自問自答 1]
還不知是否正確... 請 指教
1]
1800, 2000 2200; 2800, 3000, 3200; 4800, 5000, 5200; 7200, 7400, 7600.
是這樣對嗎?
2] 呢?
===
"老音學生" <goaway@nowhere.not> 撰寫於郵件新聞:UDrKh.24448$DN.8648@pd7urf2no...
> 可否請教一下 FM 及 AM 的問題
>
> 1]
> A complex waveform (the carrier) with a fundamental frequency of 2k Hz is
> amplitude modulated by a sine tone with frequency of 200 Hz, (the
> modulator).
> Because the carrier is a complex waveform, a sideband pair will be formed
> around each of its original partials.
> If the partials of the carrier waveform are 2000, 3000, 5000, and 7400 Hz,
> what will be the frequencies of the resulting spectrum?
> Remember to include the frequencies of the carrier waveform in your
> answer.
>
> 2]
> A single tone of 2500 Hz (the carrier) is frequency modulated by a sine
> tone (the modulator) of 140 Hz.
> Assume that three sideband pairs will be created.
> What will be the frequencies of the resulting spectrum?
>
> 我不是學 電機 電子 物理 或 類似這些的,故搞不懂
> 請 不吝指導提示幫忙
> 謝謝 ^_^
>
> -- 老音學生 --
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