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于 2009-05-08 发布 文件大小:4KB
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  选择三个不同频段的信号对其进行频谱分析,根据信号的频谱特征设计三个不同的数字滤波器,将三路信号合成一路信号,分析合成信号的时域和频域特点,然后将合成信号分别通过设计好的三个数字滤波器,分离出原来的三路信号,分析得到的三路信号的时域波形和频谱,与原始信号进行比较,说明频分复用的特点。(Choice of three different signal-band spectral analysis carried out, according to the characteristics of the design spectrum signals of three different digital filter, the signal will be three-way all the way signal synthesis, analysis of time-domain signal synthesis and frequency domain characteristics of signals and then synthetic through three digital filter designed to isolate the original three-way signal, the three-way analysis of time-domain signal waveform and spectrum, compared with the original signal on frequency division multiplexing features.)

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