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 .
采樣定理是采樣過程中所遵循的基本規(guī)律，它指出了重新恢復(fù)連續(xù)信號(hào)所必需的最低采樣頻率。
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)為例，通過理論分析和頻譜圖示意，對抽樣定理中最低抽樣率的取值進(jìn)行了明確的說明。
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)字正交采樣中，帶通信號(hào)存在頻譜遷移問題，雖然滿足帶通信號(hào)的采樣定理，仍可能產(chǎn)生頻譜混疊。