抽樣比重 的英文怎麼說

中文拼音 [chōuyàngbǐzhòng]
抽樣比重 英文
sampling portion
  • 抽 : 動詞1 （把夾在中間的東西拉出; 提取） take out （from in between） 2 （從全部里取出一部分; 騰出） ...
  • 樣 : Ⅰ名詞1. （形狀） appearance; shape 2. （樣品） sample; model; pattern Ⅱ量詞（表示事物的種類） kind; type
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 重 : 重Ⅰ名詞（重量; 分量） weight Ⅱ動詞（重視） lay [place put] stress on; place value upon; attach im...
  • 抽樣 : [統計] sample; sampling; specimen; samples draw
  • 比重 : 1 （部分在整體中所佔的分量; 比值） proportion 2 [物理學] （物體重量和其體積的比值） specific grav...
  1. This article discussed ar modeling method, capon method, music method and mn method four kinds of high resolution algorithms principle and has separately made the computer simulation in the ideal situation to the above four algorithms. through the comparison, the beam width of high resolution algorithm is much narrower than conventional beamforming method. then unifies the actual utilization, discussed the influence of time delay unbalance, time domain sampling, plane wave supposition and array element with scope and phase not identically to the beamforming and made the computer simulation

    本文首先討論了ar模型法、 capon法、 music法和mn法四種高解析度演算法的原理，在理想的情況下分別對上述四種演算法作了計算機模擬，通過比較，高解析度演算法的束寬比常規波束形成法窄得多;然後結合實際運用時的情況，重點探討了延時失配、時域抽樣、平面波假設和基陣的幅相不一致對波束形成的影響並做了計算機模擬。
  2. Two block time - recursive algorithms are developed for the efficient and fast computation of the 1 - d rdgt coefficients and for the fast reconstruction of the original signal from the coefficients in both the critical sampling case and the oversampling case. the two algorithms are implemented respectively by a unified parallel lattice structure. and the computational complexity analysis and comparison show that the proposed algorithms provide a more efficient and faster method for the computation of the discrete gabor transforms

    首先論證了一維rdgt系數求解演算法和由變換系數重建原信號演算法，不論是在臨界抽樣條件下還是在過抽樣條件下，都同樣具有塊時間遞歸特性，並提出了相應的塊時間遞歸演算法及其并行格型結構實現方法，計算機模擬驗證了并行格型結構實現的可行性，計算復雜性分析與比較也說明了rdgt塊時間遞歸演算法的并行格型結構在計算時間方面所具有的高速和高效性能。
  3. 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。
  4. In video shot segmentation, an improvement to double - threold shot segmentation algorithm is provided, which uses multi - frame sampling technique and can improve the performance significantly on the detection of gradual transition. an abrupt transition detection algorithm is also developed on the basis of the closest pixels matching in spatio - temporal slice, which decreases the false rate and computing strength greatly

    在視頻鏡頭分割方面，提出了一種基於多幀抽樣的雙重比較鏡頭分割演算法，有效地提高了對視頻鏡頭漸變檢測的性能;同時，針對視頻鏡頭突變的檢測，提出了一種基於最近鄰像素匹配的時空切片鏡頭突變檢測演算法，該演算法顯著降低了突變檢測的虛檢率和計算量。
  5. They have also suggested that the very concept of abstract numbers ? the idea of a oneness, a twoness, a threeness that applies to any class or objects and is a prerequisite for doing anything more mathematically demanding than setting a table ? is itself far from innate

    這也同樣表明：應用於任何類和物體的抽象數字，如，一維性、二重性、三重性是做比擺桌子這類更具數學要求的事情的先決條件? ?這並不是天生就決定了的。
  6. A type of longitudinal survey design in which results from repeated independent samplings are compared over time

    一種縱向調查.對重復獨立抽樣的結果進行比較
  7. The difference between the image obtained through method of microscanning and the single sampling image is simulated by computer based on the theory of microscanning. the sampled image and the images constructed with microscanning are presented as well

    用計算機進行模擬分析，比較了採用微掃描方法合成的圖像和單幀抽樣圖像的差異，並給出了填充因子不同時的抽樣圖像和微掃描重建圖像。
  8. We apply the b - spline smoothed rejection sampling method to importance sampling. numerical experiments show that the error size o ( n - 1 ) is regained by using the b - spline smoothed rejection method for quasi - monte carlo estimate. the error bound of monte carlo method using b - spline smoothed importance sampling is also better than that of the standard monte carlo method

    將b樣條光滑拒絕方法用於重要抽樣估計，數值例子顯示擬蒙特卡羅積分的精度重新達到了o （ n ~ （ - 1 ） ）的階，而對于蒙特卡羅積分，採用b樣條光滑重要抽樣，其精度也比標準積分的精度o （ n ~ （ - 2 / 1 ） ）好。
  9. Importantly, we analyze problems in this country ' s tourist sampling. large disparities between the results of various local surveys make it impossible for local surveys to be compared with one another ; nor can local surveys be compared with national ones

    重點分析了我國進行國內遊客抽樣調查存在的問題：即各地方抽樣調查的結果差異很大，出現了地方與地方、國家與地方之間調查的結果不可比的現象。
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