frequency sampling theorem

基本解釋

In the course of the sampling, the sampling theorem is a basic rule and points out the least sampling frequency for reconstructing the signals .
採(cǎi)樣定理是採(cǎi)樣過(guò)程中所遵循的基本槼律，它指出了重新恢複連續(xù)信號(hào)所必需的最低採(cǎi)樣頻率。
Though examples of common signal and sine signal, by the frequency spectrum graph and theoretical analysis, the minimum sample rate of the sampling theorem is made clear.
以一般信號(hào)和正弦信號(hào)爲(wèi)例，通過(guò)理論分析和頻譜圖示意，對(duì)抽樣定理中最低抽樣率的取值進(jìn)行了明確的說(shuō)明。
For bandpass signal under digital quadrature sampling, there is spectrum shifting. Although the sampling frequency satisfies the sampling theorem, it may cause spectrum aliasing.
在數(shù)字正交採(cǎi)樣中，帶通信號(hào)存在頻譜遷移問(wèn)題，雖然滿足帶通信號(hào)的採(cǎi)樣定理，仍可能産生頻譜混曡。