抽样定理的验证

The confirmation of sampling theorem

通过实验观测了抽样信号fs(t)的频谱,研究了频谱的特点。为了能够从抽样信号fs(t)中无失真地重建原信号f(t)而不致于产生混叠现象,采用了提高抽样频率的方法,使得滤波器的输出端只有所需要的信号频谱F(ω),从而进一步验证了著名的"抽样定理"。

Thespectrumofsamplingsignalisobservedanditscharacteristicsaredeeplystudiedthroughexperi ment.Inordertoestablishoriginalsignalfromsamplingoneswithoutlosingtruthanddisorder,highsamplingfrequen cyisusedsoastomakefilter′soutputonlyhavesignalspectrumF(w) .Sothefamous“Theoremofsampling”has beenproved .