decimation 中文意思是什麼

decimation 解釋
抽取
  1. Data preprocessing refers to the process of polygonization, smoothing, decimation and registration. the flow and main steps of data preprocessing are described here. several specific cases, for example the sampling method based on chordal deviation, the feature based registration, are discussed

    本文研究和討論了點雲預處理的基本流程和主要步驟，研究點雲光順的高斯濾波，中值濾波和平均濾波方法、點雲精簡的弦高差演算法和多視點雲特徵對齊的方法。
  2. Design multi - stage decimation system on the basis of halfband filters and cic filters

    在半波帶濾波器和cic濾波器的基礎上設計了多級抽取系統。
  3. The emphasis of research is decimation technology. design cic filters and halfband filters with this theroy. 4

    重點研究了抽取技術，並將這種技術應用於數字中頻系統，設計了cic濾波器和半帶濾波器； 4
  4. Decimation of triangle meshes based on half - edge structure

    基於半邊結構的點刪除演算法研究
  5. High quality and shape preserving triangular mesh decimation

    高質量保形三角網格簡化演算法
  6. Design and application of a digital decimation filter based on labview

    平臺的數字抽取濾波器的設計與應用
  7. 4. recounted design approach and result of filter such as decimation filter, interpolation filter, low pass filer. 5

    詳細給出了擴頻碼產生器及解擴匹配濾波器的演算法和設計結果。
  8. In the end it will become strong again just for a short time, but the decimation of normandy will be a sorry blow

    最後，它會變得強壯起來，僅是很短的時間，但對諾曼底的屠殺只會是一個可憐的喘氣。
  9. Among the various ways to achieve the demodulation and decimation of i and q channels, the polyphase filter is selected in the paper

    Ddc的實現分為兩個部分， iq分解和抽取。本文採用的是多項濾波的方式。
  10. The algorithm, which consists of two main parts, i. e. the particle tracing and the density estimation with mesh decimation, is described in detail

    演算法主要由兩個模塊組成：粒子跟蹤過程，網格優化與密度估計過程，在此進行了詳細介紹。
  11. Therefore, a method in design and fpga implementation of wideband digital if receivers based on polyphase filters to fulfill decimation and filtering is proposed

    本文正是基於這種目的，研究並設計了基於軟體無線電技術的中頻數字接收機的數字下變頻。
  12. This thesis concentrates on the analysis of sampling rate changing ( decimation and interpolation ) ; the discussion of basic multirate signal processing theory ; the implementation of high efficient algorithm, which provides the bases for other algorithm development in this thesis

    本文從頻域的角度深入分析了抽樣率變換的規律，並進一步研究了多抽樣率系統的高效實現方案和基本理論，為其它演算法的研究提供了必要的基礎。
  13. 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。
  14. A generalization, n > 4, is given in this paper. in result the critical points of these koch curve with different values of tv by decimation based on ising model are same, but the critical exponents are different. the four ones, , are same, and the other two v, are different

    本文對其進行一種推廣，推廣后n 4 ，對于取不同n值的科赫曲線應用重整化群的格點消元法，仍採用ising模型，結果得到同樣的相變點，但是臨界指數不完全相同，其中， ， ，相同，而，不同。
  15. The traits of the two kinds of lattice determine which method we use to study it. the site - block method is often for transitionally invariant lattice and decimation for fractals

    這兩種晶格的特點也就決定了在重整化群計算時選取什麼樣的粗粒化方法，平移對稱晶格一般採用自旋?元塊法，分形晶格採用格點消元法。
  16. This article describes the plc ’ s using enviroment and the users ’ needs in details, and then tells the differences between the dplc and the troditional plc. it also describes how to decimation and compress the tele - voice, how to deal with the data tunnels, and the multiplex data through the the line which ’ s bandwidth is changeable between 10. 8bps and 28. 8kbps this project uses the programmable vopp chips, the cpld for bus controlling, the fpga and the mcu with high processing ability. all of these ensure the high ability to process the signals and the operations

    本文詳細介紹了高壓電力線載波機的使用環境和用戶需求，全數字電力載波機和傳統模擬載波的的差異;按電力調度的需求設計完整的兩路語音、兩路數據的電力線載波通訊機。詳細描述電話語音的采樣，壓縮;數據通道的處理;及在10 . 8kbps 28 . 8kbps可變線路速率通道上的數據復接處理。從實現方法上看，該項目採用專用可編程vopp語音處理晶元， cpld晶元做為總線控制，大規模fpga集成電路，高處理能力的mcu 。
  17. In addition, this paper analyzes the noise - filtering quality of phase locked loop, a / d transformation theory, and the combination and quality of the decimation filter

    並對鎖相環對噪聲的過濾性能、 a / d轉換原理和抽取濾波的組成及性能進行了深入地分析。
  18. After having a research on wavelet analysis and the sampling of two dimension signals, it is pointed out that it is a good method that compounds wavelet method with image matching, simultaneously indicated that quincunix decimation is a good method for natural image

    詳細的分析了小波濾波技術和二維信號采樣，指出了將傳統的圖像匹配技術和小波濾波技術結合是解決圖像匹配技術的有效途徑，同時指出對於二維自然景物五株抽取法也是一種有效的濾波方案。
  19. As the spread spectrum and despread of digitalization are handled on the digital baseband, it is very important to convert medium frequency signal in analogue to digital baseband signal, and the downconverter functions to convert analogue medium frequency to analogue baseband signal, and to digital baseband signal through a / d transformation and decimation filter

    所以把模擬的中頻信號變為數字基帶信號的下變頻器就顯得非常重要。在這里下變頻器的作用是將由前一級接收而來的模擬中頻信號變為模擬的基帶信號，再經過a / d轉換和抽取濾波成為數字的基帶信號。
  20. Chapter 2 studies the principles for digital front - end design including decimation, interpolation, hbf ( half band filter ) and cic ( cascaded integrator - comb ) filter

    第二章研究了數字前端設計所涉及的一些原理和技術。包括抽取、內插、 hbf濾波器和cic濾波器等。
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