threshold detection 中文意思是什麼

threshold detection 解釋
國境線上探測
  • threshold : n. 1. 門檻；入口，門口。2. 【心理學】閾限。3. 界限，限度。4. 【物理學】臨界值，閾。5. 入門，開始，開端。
  • detection : n. 1. 探知；發現，發覺；敗露。2. 【化學】檢定，檢查；【電訊】檢波。
  1. Combining the basic laws of psychophysics and signal detection theory, we use two - alternative forced - choice ( 2afc ) to study the threshold change of human electric sense under different noise levels

    在心理物理實驗中，結合心理物理學和信號檢測論的基本原理，採用了二間隔的強迫選擇法（ 2afc ）作為實驗方法，研究不同噪聲量級情況下人體電感覺閾值的變化。
  2. Additionally, target detection will take into account a target ' s radar cross section ( rcs ), its aspect angle, and its air speed ( targets below the threshold gate will not be detected )

    外加目標的確定怎加了計算目標的rcs值當空速低於這個門限的時候目標將無法被察覺
  3. In this paper, a fractal based knock threshold detection method is presented

    提出了一種利用分形幾何檢測汽油機爆震邊緣的方法。
  4. This paper presents two methods for cloud detection : multi - channel dynamical threshold algorithm and apparent reflectance algorithm

    本文介紹了兩種雲檢測演算法：雙通道動態閾值法和表觀反射率法。
  5. Based on judge whether the visual band was valid or not, the method separated land region from water region, and then set proper threshold values separately for land and water regions in different images and different bands, by that way an automatic cloud detection could be achieved

    該方法在可見光波段是否有效判斷的基礎上，進行圖像水陸區域劃分，然後對不同圖像、不同波段的水域和陸域分別設定合理的閾值，實現了雲自動檢測目的。
  6. ( c ) propose the scheme to implementing the coder and deoder of optical time - spreading / frequency - hopping, by assigning two orthogonal codes for one user and using these two codes to encoding 1 and 0 respectively, differential detection can be adopted. not only improves system performances in ber, but also resists the interference such as mai, and does n ' t need any control devices to evaluate the optimum decisive threshold

    通過給每個用戶指定互相關為0的兩個地址碼分別發送1和0信號以及在接收端採用差分檢測技術，避免了ook （開關鍵控）光通信系統中0不發送光脈沖和ook常規檢測方式下最佳判決門限必須根椐用戶數等外界環境而改變，從而提高了系統性能和降低了系統的復雜度。
  7. The concrete forms of cfar algorithm for different clutter distributions are deduced particularly. it concludes the relationship between the detection threshold and the false alarm rate and the estimation of the clutter statistic measure, and so on

    詳細推導了不同分佈下cfar演算法的具體形式，包括檢測閾值與虛警率的關系，雜波統計量的估計等內容。
  8. Abstract : based on weapon locating radar, this paper discusses detection performances of its sequential detection system in detail firstly. optimal method is applied to obtain its optimum threshold and criteria

    文摘:以某型炮位偵察校射雷達為實際工程背景，詳細討論了其序列檢測系統的檢測性能，並應用最優化方法得出其最佳門限和最佳判定準則。
  9. Compared with traditional arithmetic, the result shows that the improved method is better in keeping integrality and consistency of image, image segmentation, threshold edge detection

    然後針對骨髓切片圖像中粘連細胞的特點，運用了基於距離變換的分水嶺分割演算法以及等值線跟蹤及臨界跟蹤法完成了對粘連細胞的分割。
  10. 3. edge detection and threshold segment are used in safe landing area choice

    3 .採用邊緣檢測和閾值分割方法進行軟著陸安全區域選取。
  11. The study on on - line ultrasonic roller shape detection based on dual threshold method

    基於雙閾值法的超聲輥型在線檢測的研究
  12. Threshold logic of a decision function is used to evaluate the generated residual so as to enhance the robustness of fault detection systems

    採用閾值邏輯方法評價所產生的殘差信號，以提高故障檢測系統的魯棒性。
  13. Double - threshold are adopted in the part of endpoint detection

    其中端點檢測採用雙門限法。
  14. Determination of the detection limit and decision threshold for ionizing radiation measurements - part 7 : fundamentals and general applications

    電離輻射測量的探測極限和判斷閾值的測定.第7部分:基本原理和一般應用
  15. Detection limit and decision threshold for nuclear radiation measurements - part 5 : counting measurements by high resolution gamma spectrometry, neglecting the influence of sample treatment ; examples and comments

    核輻射測量的探測極限和決策門限.不考慮試樣處理影響
  16. Determination of the detection limit and decision threshold for ionizing radiation measurements - part 8 : fundamentals and application to unfolding of spectrometric measurements without the influence of sample treatment

    電離輻射測量的探測極限和判斷閾值的測定.第8部分:基本原理和不受樣品處理影響的光譜測量演變的應用
  17. A rail deformation detection algorithm based on multi - threshold feature extraction was presented in this paper

    本文提出一種基於多門限特徵提取的軌道故障檢測演算法。
  18. This paper introduces the methods of hyperspectral images band selection based on the property of hyperspectral remote sensing images, utilizes the projection pursuit approach to find optimal solutions for a selected projection index based on dynamical evolutionary algorithm and then project a high dimensional data set into a low dimensional data space to produce a sequence of projection images, explores zero - detection method to threshold projection images to detect anomaly tar get

    摘要運用基於波段間相關性的高光譜影像波段選取方法進行波段的預選取，採用投影尋蹤的方法在動力演化演算法的基礎上尋找最佳投影方向，將高維數據投影至低維數據空間，在各投影分量圖像上採用零點檢測閾值化的方法進行異常目標的提取。
  19. ( 2 ) based on cfar techniques of low resolution radar under the rayleigh clutter background, the double threshold detection ( dtd ) method which is suitable for hrr radar has been discussed, and then an approach of double threshold detection under unrayleigh background has been given. by means of the monte - carlo simulation method, the detection performances have been analyzed

    （ 2 ）分析了瑞利雜波背景下的低分辨雷達恆虛警檢測方法，討論了適用於高距離分辨雷達的雙門限檢測方法，研究了非瑞利雜波背景下的雙門限檢測方法，並採用蒙特卡羅模擬分析其檢測性能。
  20. Knock threshold detection is the key of closed loop control of ignition in gasoline engine, and it is also the difficult point in knock measurement

    摘要汽油機爆震邊緣檢測是汽油機點火閉環控制的前提，也是爆震檢測的難點。
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