sampling theorem 中文意思是什麼

sampling theorem 解釋
采樣定理，抽樣定理
  • sampling : n. 1. 取樣（品），取標（本）〈指行動或程序〉。2. 樣品，標本。3. 剽竊拼湊歌曲。
  • theorem : n. 1. （能證明的）一般原理，公理，定律，法則。2. 【數學】定理。
  1. Bandpass sampling theorem and digital quadrature coherent detection

    帶通采樣定理與中頻採集數字正交檢波
  2. First, how to conduct sample and quantification of continuous time signal which is prior condition of sdr is explored in detail, and the comparison and analysis of some sample modes are given in which band pass signal sampling theorem is most important. second, multi - sample rate signal processing which is an important basis of sdr is studied. emphasis are put on decimation and interpolation those are the most fundamental process and the realization of decimation and interpolation filter

    在基於中頻采樣的軟體無線電結構框架下，首先詳細探討了軟體無線電的前提條件，即如何對連續時間信號進行采樣量化，比較分析了幾種采樣的方式，其中最為重要的是帶通信號采樣定理；然後探討了軟體無線電的一個重要基礎，即多采樣率信號處理，重點討論其最基本的兩個過程抽取和內插以及抽取器和內插器的實現；接著介紹了結構簡單、適用於一級抽取的cic濾波器和適用於做2倍抽取的半帶濾波器；再次論文在總結了傳統的調制解調基礎上，結合軟體無線電器件的特點，系統的探討並實現了基於正交思想的am 、 fm 、 ask 、 fsk 、 bpsk 、 qpsk的正交調制解調演算法。
  3. Sampling theorem to periodic non - continuous signal from cavitation of piezoelectric pump

    抽樣定理在周期性非連續信號的壓電泵氣穴現象中的應用方法
  4. On the basis of high speed hybrid filter banks adc system, a kind of downsampler model based on bandpass sampling theorem is presented, and analyzed, proved in time and frequency domain, in addition a downsampler is designed according to the model. a class of high effective hybrid filter banks adc system which bases on the downsampler and radio frequency spectrum is proposed, of which digital signal rate falls m times as fast as the former

    作者提出了一種基於帶通采樣定理的抽取器數學模型，對該數學模型進行了時域、頻域的分析證明后，設計了一種基於該數學模型的抽取器，進而根據無線電射頻信號頻譜的特點，提出了高效混合濾波器組adc系統，其數字信號輸出速率比高速混合濾波器組adc系統降低m - 1倍。
  5. The bottleneck of hybrid filter banks adc system is that it cannot sample directly higher radio frequency signal because of lower analog input bandwidth of its adc. in order to remove it, a kind of downsampler model based on nyquist and bandpass sampling theorem is presented, analyzed and proved in time and frequency domain, in addition a downsampler is designed according to the model. on the basis of hybrid filter banks adc system, a class of high speed hybrid filter banks adc system is proposed

    針對混合濾波器組adc系統因其adc模擬輸入帶寬低而不能對頻率較高的射頻模擬信號進行模/數轉換的瓶頸，作者提出了一種基於nyquist采樣定理和帶通采樣定理的抽取器數學模型，對該數學模型進行了時域、頻域的分析證明后，設計了一種基於該數學模型的sha抽取器，進而在混合濾波器組adc系統的基礎上，提出了高速混合濾波器組adc系統。
  6. Sampling theorem for band - limited low - pass signal with disturbance from a sine signal

    正弦信號干擾下低通帶限型頻譜信號的采樣
  7. The history of sampling theorem in wavelet subspaces is presented in section 1. some results and preparing works are showed in section 2

    第一節給出了小波子空間上抽樣定理的發展狀況；第二節呈現出已知結果和準備情況。
  8. The traditional beam propagation algorithm based on fast fourier transform fails to give right results due to the limitation of the sampling theorem

    由於取樣定理的限制，常規的基於快速傅里葉變換（ fft ）光束傳輸模擬演算法不能進行任意焦距聚焦光束的傳輸過程的模擬。
  9. Then, a new adaptive, on - line, fast samplingstrategy - multi - scaling sampling - is presented inspired by mra multi - resolution analysis and shannon sampling theorem, for quicklyobtaining acceptably approximate association rules at appropriate samplesize. both theoretical analysis and empirical study have showed that thesampling strategy can achieve a very good speed - accuracy trade - off

    但是，取樣策略必須在演算法的效率和結果的精確性之間進行很好的折中， 「如何確定合適的樣本大小使得運行於其上的關聯規則挖掘滿足精確性的要求取樣復雜性」成為這一方法的關鍵難解問題。
  10. The influence of the detecting array on the spectrum signal is studied. a solution is put forward to correct the displacement error caused by width of the light activated element, when the sampling theorem is satisfied

    提出了在滿足采樣定理的前提下，採用頻域反卷積的方法來消除由像元寬度對光譜峰值定位造成的亞像元誤差。
  11. 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

    詳細介紹了微掃描的原理，並對微掃描的成像過程進行理論建模，從抽樣定理推論出採用微掃描技術對改善圖像質量的可能性。
  12. Application in ds cdma digital receiverbasing on frequency sampling theorem

    信號數字接收中的應用
  13. This paper makes out the sampling frequency of bandpass sampling theorem, reduces the data rate after the sampling of broadband software radio ( signal bandwidth is 20 mhz ) and raises information processing speed

    本文確定了按帶通采樣定理采樣的頻率，降低了寬帶軟體無線電（信號帶寬為20mhz ）采樣后的數據率，提高了信息處理能力。
  14. Above all, the optical propagation characteristics in crystals are studied in detail. derived from impulse response and sampling theorem in electronics, we establish the mathematical model of pif constructed by a series of birefringent crystal retarders with arbitrary azimuths sandwiched between two polarizers

    本論文首先深入分析光在晶體中的傳播特性，借鑒電學中的脈沖響應和采樣定理，建立由前後兩個偏振片之間夾放一系列角度任意延遲片構成的偏振干涉濾光片數學模型，並分析了其脈沖響應特性。
  15. On sampling theorem for founctions of double variables

    關於二元函數樣本定理
  16. Direct sampling theorem of band - pass signal

    帶通信號的直接采樣理論
  17. Improvement of radar if sampling theorem

    雷達中頻采樣理論的改進
  18. Irregular sampling theorem on the frame

    框架下的不規則采樣定理
  19. The high - speed sampling theorem

    高速取樣定理
  20. The digital quadrature sampling theorem for bandpass signal and its optimum design

    帶通信號的數字正交采樣定理及優化設計
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