sampling theorem

基本解釋

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。
By using Sampling Theorem, the paper first deduce the characteristics of the first class partial response shaping filter that can be realized on the physical from the spectrum overlap.
文章利用抽樣定理，首次由頻譜的混曡導(dǎo)出物理上可實(shí)現(xiàn)的第一類部分響應(yīng)形成濾波器特性。

採(cǎi)樣定理
抽樣定理
取樣定理
In this paper,the approach of problem-based teaching is introduced by taking the sampling theorem teaching as an example.
本文以取樣定理的教學(xué)爲(wèi)例,闡釋了問題式教學(xué)法的實(shí)施步驟。
取樣定理

採(cǎi)樣定理
Then based on the definition of two-dimensional WFRFT, we present the sampling theorem for bandlimited signals in two-dimensional WFRFT domain.
然後,基於二維加權(quán)類分?jǐn)?shù)傅立葉變換的定義,給出了二維加權(quán)類分?jǐn)?shù)傅立葉變換域帶限信號(hào)的採(cǎi)樣定理。
抽樣定理
取樣定理

抽樣定理
In this paper the theory of microscanning is described and the process of imaging of microscanning is simulated theoretically, meantime, the possibility of improving the quality of image using microscanning is deduced from the sampling theorem.
詳細(xì)介紹了微掃描的原理，竝對(duì)微掃描的成像過程進(jìn)行理論建模，從抽樣定理推論出採(cǎi)用微掃描技術(shù)對(duì)改善圖像質(zhì)量的可能性。
地球科學(xué)
採(cǎi)樣定理