speed-up ratio 中文意思是什麼

speed-up ratio 解釋
加速比
  • speed : n 1 快，迅速。2 速率，速度。3 （汽車的）變速器，排擋。4 （膠片，照相紙）感光速度。5 〈古語〉興隆...
  • up : adv （superl uppermost ）1 向[在]上，向[在]上面；向[在]被認為處于上方的地方或方面〈如河流的源頭，...
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. Z - tranformation augmented fasf algorithm proposed in the dissertation can reduce the search space of integer ambiguity effectively, improve the effiency and real - time processing ability of integer ambiguity resolution ; it is essential to analyse the reliability of integer ambiguity after it was fixed, the ratio test algorithm proposed in the dissertation can reduce the time to fix new integer ambiguity after wrong fixes are detected ; to reduce further the number of epochs required for ambiguity resolution, that the baseline length constraint information which acts as observables is used to do kalman filtering to speed up ambiguity resolution is proposed

    本文提出的z變換增強fasf演算法能有效的減小模糊值搜索空間，提高整周模糊值解算的速度和實時性；整周模糊值確定后，需要對整周模糊值的可靠性進行分析，本文提出的比率檢測演算法能有效的減少整周模糊值錯誤確定后整周模糊值二次解算所需要的時間；為了進一步減少整周模糊值解算所需的歷元數目，本文提出把基線長度先驗信息作為觀測量進行卡爾曼濾波輔助整周模糊值求解。
  2. Therefore if the closed planetary gear train and the differential plahetary gear train set up a multistage mixed gear train, we will obtain a winch on automobile crane which satisfy the request of double speed, great transmission ratio and small volume

    因此將差動和封閉行星輪系組成多級混合輪系，就可得到一種滿足汽車起重機上的卷揚機雙速、大傳動比、小體積要求的傳動機構。
  3. However, the cellulose chains of tubular films have obvious axial orientation with respect to the machine direction. moreover, the casting speed, draw down ratio and blow up ratio also have significant influences on the film mechanical properties and supermolecular structure

    上述研究，對nmmo法纖維素膜的工藝條件、結構、性能和成形機理有了一個全面深入的認識，為該膜的進一步應用開發提供了實踐指導和理論基礎。
  4. Theoretically, fractal dimension has powerful ability to classify image blocks, which results in big speed - up ratio in fractal encoding ; and fractal dimension is a continuous value, which enables us to adjust the quality of decoded images by changing the number of classes

    在理論上，由於這種維數具有很好的分類能力，使得這種方法可取得很大的加速比；由於這種維數是連續量，還可通過改變分類數目來調節解碼圖像的質量。
  5. Theoretically, this quadrature can classify image blocks effectively, which bring out big speed - up ratio in fractal encoding ; and this feature is a continuous value, which enables us to adjust the quality of decoded images by changing the number of classes. our experimental results show that, comparing with exhaustive search, when the class number is 25, we obtain 20 times speed - up ratio, with only image degeneration of 2. 08db, at the same compression ratio

    _ }速比;這種不變量也是連續量，大量的數值實驗表明，因此還可通過改變分類數目來調竹解碼圖像的質量在壓縮比相同的前提下，與全局搜索法相比，塊分為25類時，可取得約20倍的加速比，而解碼質量只相差2
  6. Existed fast encoding methods are often at the cost of image quality, or can only obtain poor speed - up ratio

    目前許多分形編碼加速方法或者以犧牲解碼圖像質量為代價，或者加速效果不明顯。
  7. In this dissertation, some fast fractal image encoding and controllable progressive decoding scheme are proposed, as follows : ( 1 ) because of existed fast encoding methods are often at the cost of reconstructed image quality, or can only obtain poor speed - up ratio

    為此，本文在快速分形編碼方面和漸進解碼方面作了以下研究工作: （ 1 ）針對目前許多分形編碼加速方法或者以犧牲解碼圖像質量為代價，或者加速效果不明顯的情況。
  8. Our experimental results show that, comparing with exhaustive search, when the class number is 25, we obtain 17 times speed - up ratio, with only image degeneration of 1. 574951db, at the same compression ratio. compared with other classification schemes, our method can provide more speed - up and better quality of decoded image. 2

    我們做了大量的數值實驗，結果表明，在壓縮比相同的前提下，與全局搜索法相比，將圖像塊分為25類時，可取得約17倍的加速比，而解碼質量只相差1 . 574951db ；另外，與其他分類方法的比較實驗表明，本方法有更好的加速效果和解碼質量。
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