本文選題：調(diào)制解調(diào) + 實(shí)驗(yàn)教學(xué)　； 參考：《實(shí)驗(yàn)技術(shù)與管理》2017年08期

【摘要】：設(shè)計(jì)了"正弦信號PCM編碼和PSK調(diào)制頻帶傳輸"實(shí)驗(yàn)。采用通信原理實(shí)驗(yàn)箱和20MHz雙蹤示波器,2kHz的正弦波在8kHz窄脈沖采樣信號和64kHz編譯碼時(shí)鐘作用下,把模擬信號轉(zhuǎn)換為數(shù)字信號;選擇1MHz正弦波為載波進(jìn)行PSK調(diào)制和解調(diào),調(diào)制后的信號能解調(diào)出原來的數(shù)字信號,在同步時(shí)鐘作用下,將信號還原為2kHz的正弦波。通過該實(shí)驗(yàn),學(xué)生可直觀地了解PCM編碼和譯碼、PSK調(diào)制和解調(diào)過程。
[Abstract]:The experiment of sinusoidal signal PCM coding and PSK modulation band transmission is designed. Using the communication principle experiment box and the 2kHz sinusoidal wave of 20MHz dual tracer oscilloscope, the analog signal is converted into digital signal under the action of 8kHz narrow pulse sampling signal and 64kHz encoding and decoding clock, and the 1MHz sine wave is selected as carrier for PSK modulation and demodulation. The modulated signal can deactivate the original digital signal and restore the signal to a sinusoidal wave of 2kHz under the action of synchronous clock. Through this experiment, students can directly understand the PCM coding and decoding PSK modulation and demodulation process.
【作者單位】： 武漢交通職業(yè)學(xué)院電子與信息工程學(xué)院;
【基金】：湖北省教育科學(xué)“十二五”規(guī)劃2013年度重點(diǎn)課題(2013A052)
【分類號】：G712;TN911.3-4
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本文編號：2067271