離散值目標 的英文怎麼說

中文拼音 [lísǎnzhímùbiāo]
離散值目標 英文
discrete valued objective
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
  • 目 : Ⅰ名詞1 （眼睛） eye 2 （大項中再分的小項） item 3 [生物學] （把同一綱的生物按彼此相似的特徵分為幾...
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 離散 : dispersed; scattered about; separated from one another; spread; debunching; straggling; fringing;...
  • 目標 : 1. （對象） target; objective 2. （目的） goal; aim; destination
  1. Bringing forward an intelligent decision method of image segmentation based on roughset theory to make the system automatically select segmentation algorithm in simple scenes. firstly, it selects some representative segmentation algorithms to make up of an algorithm library, which is used to process kinds of sample images ; secondly, it makes the decision informationtable utilizing diversified numerical features extracted from the sample images and the optimalsegmentation algorithm of each sample image according to segmentation quality evaluationcriterion ; finally, it applies rough set theory on discretization and attribution reduction of

    為了使系統在簡單場景下能夠通過自動選取分割演算法來提取目標，提出了一種基於粗糙集理論的圖像分割智能決策方法。首先選取若干具代表性的分割演算法構成演算法庫，並用它們對各種樣本圖像進行分割;然後利用從樣本圖像中提取出來的各種數值特徵，並根據圖像分割質量評價標準評判出各樣本圖像的最優分割演算法，用其構成決策信息表;最後應用粗糙集理論來對決策信息表進行離散化處理和屬性約簡，以生成圖像分割演算法選取的決策規則。
  2. The electrical field integral equation ( efie ) and the rwg basis function are used. the impedance matrix is decomposed by the row, stored in distributed memory of the nodes. besides, the processors exchange messages through the mpi communication library

    採用的是電場積分方程（ efie ） ，用rwg基函數離散目標，阻抗矩陣數據按行分解，分佈存儲于各個計算節點中，通信通過mpi通信庫實現，數值結果表明了該并行程序的高效性和正確性。
  3. Some valuable conclusions are summarized by theoretical analysis and simulation experiments : from the side of signal processing, pulse jamming can be deleted by the method of time - domain sliding window accumulation and can be restored by interpolative prediction. ; gauss white nose can be attenuated while jamming disperse point - target by the method of time - frequency analysis in time - frequency domain. ; radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain

    通過大量的理論分析和模擬實驗，得到了一批具有一定價值的結論：從信號處理的角度出發，對于脈沖式干擾，能夠運用時域滑動窗口積累的方法去掉，並且通過預測插值得到較好的恢復；對于高斯白噪聲干擾，在時頻變換域內應用時頻分析方法可減小其對分散點目標的干擾；對于射頻噪聲，通過平均距離頻頻法和頻域陷波的方法可以去掉；從改變合成孔徑雷達系統角度出發，類似雙基地雷達能夠避免各種干擾，對發射信號進行調幅，調相以及改變調頻斜率都是較好的抗干擾方法。
  4. However, as one of the most complicated mix - integer nonlinear problems with the characteristics of multi - objective, multi - uncertainty, multi - restriction, multi - extremum and discreteness property, the reactive power optimization problem is not yet solved completely

    然而由於無功優化問題是一個非常復雜的非線性問題，具有多目標、多不確定性、多約束、多極值和離散性等特點，尚有很多問題有待解決。
  5. Following are detailed steps of this system : in the segmentation section, we use three successive frames to detect the motion infomation of the pictures, by using blockmatching algorithm in two successive frames twice, we can get two pictures composed of motion blocks of the moving object, then we find out the common motion blocks of the two pictures, experiments prove these blocks approximately compose the moving object. after getting the motion blocks, we calculate the center of these blocks as the center of the moving object, thus we can use the center point as the origin, construct n straight linesjoining the boundry of the image and the center. on each line, we can find out a proper point near the object contour according to some criteria, then we use these n points as the initial points of the snake and let the snake converge on the object contour, thus finish the segmentation of the moving object

    本方案的實現過程為：分割部分：對運動目標的前後三幀進行兩次塊匹配運動檢測，通過找出兩個匹配結果中運動圖像塊的公共部分，獲得組成運動目標的圖像塊；求出運動目標圖像塊的形心作為運動目標的中心，以此中心為端點，向四周發散出角度間隔為的n條射線，射線的另一端終止於圖像的邊緣；在每條射線上按照一定的準則（點的梯度和與目標中心的距離在一定閾值范圍內）找出n個初始輪廓點；以這些初始輪廓點作為主動輪廓模型（ snake ）的初始點，用改進的貪婪演算法使snake收斂到待分割的運動目標輪廓上。
  6. After analyzing the theory of target scattering and characters of hrrp, the approach of target recognition is presented, which is based on the statistical features of hrrp, including peak value, scale, radial energy accumulation variance, and fft - mdmt characters

    在分析目標的散射機理以及高分辨一維距離像特性的基礎上，提出了一種基於目標距離像的峰值特徵、尺度特徵、徑向能量積累、方差特徵、 fft - mdmt特徵等五維距離像統計特徵的目標識別方法。
  7. Based on the simplified principle, the modal shapes of selected structural modes are converted into modal strains. to minimize the calculation error, curve - fitting technique is used in the process. the modal strains are summed together to determine the global distribution of the structure for selected vibration modes so that the position of piezoelectric elements could be optimally determined according to the simplified optimization principle

    通過二階中心差分運算將模態振型轉化為模態應變，採用應變曲線擬合方法降低離散誤差，進而將各階待控模態應變進行疊加，獲取系統整體特徵應變分佈情況；最後根據壓電元件位置優化的簡化目標函數，將壓電片的最優位置確定為柔性板疊加模態應變的極值區域。
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