重演距離 的英文怎麼說

中文拼音 [zhòngyǎnjùlí]
重演距離 英文
repetition distance
  • 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...
  • 演 : 動詞1 （演變; 演化） develop; evolve 2 （發揮） deduce; elaborate 3 （依照程式練習或計算） drill;...
  • 距 : Ⅰ名詞1 （距離） distance 2 （雄雞、雉等的腿的後面突出像腳趾的部分） spur （of a cock etc ）Ⅱ動詞...
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 重演 : 1 （重新上演） put on an old play etc ; repeat the performance 2 （再次出現） recur; repeat 3 （...
  • 距離 : 1 （相隔的長度） distance; range; gap; space; spacing; separation 2 （相距） be apart from; be aw...
  1. The asteroids are the most important small bodies in the solarsystem, and they mainly lies in the two locations - a main belt between the mars ' s orbit and the jupiter ' s and the near - earth space. the most feature of the orbits of near - earth asteroids ( neas ) is that the semi - major axes of the orbits are nearly equal to that of the earth or the perihelia distances are approximate to or even less than the mean distance between the sun and the earth, thus they could move into inside of the earth ' s orbit, so that they might close approach or even colliside with the earth ( or other planets, such as the venus, the mars, etc. ). the characteristic brings about some difficulties in the numerical research during their orbital evolution, which leads to the failure of the normalization technique in the general removal impact singularities of celestial mechanics methods and the symplectic algorithm which is successfully applied to the investigation in quality. by comparing the computation effects of several common numerical methods ( including symplectic algorithm ), and considering the nature of the movement of the small bodies, the corresponding treatments are provided here to improve the reliability of the computation

    小行星是太陽系最重要的一類小天體，主要分佈在兩個區域；火星和木星軌道之間的一條主帶和近地空間.近地小行星軌道的最大特點是其軌道半長徑與地球軌道半長徑相近，或近日距離接近甚至小於日地平均距離，其運動可深入到地球軌道的內部，這將導致該類小行星與地球（還有金星、火星等）十分靠近甚至發生碰撞.這一特徵給其軌道演化數值研究帶來一些困難，包括天體力學方法中一般消除碰撞奇點的正規化處理以及對定性研究十分成功的辛演算法都將在不同程度上失效.通過對幾種常用數值方法（包括辛演算法）計算效果的比較，根據小天體運動自身的特性，給出了相應處理措施，從而可提高計算結果的可靠性
  2. Topics include : planets, planet formation ; stars, the sun, " normal " stars, star formation ; stellar evolution, supernovae, compact objects ( white dwarfs, neutron stars, and black holes ), plusars, binary x - ray sources ; star clusters, globular and open clusters ; interstellar medium, gas, dust, magnetic fields, cosmic rays ; distance ladder ; galaxies, normal and active galaxies, jets ; gravitational lensing ; large scaling structure ; newtonian cosmology, dynamical expansion and thermal history of the universe ; cosmic microwave background radiation ; big - bang nucleosynthesis

    課程的主題包含了：行星、行星形成；恆星、太陽、正常的恆星、恆星形成；恆星演化、超新星、緻密天體（白矮星、中子星及黑洞） 、波霎、雙x -射線源；星團、球狀及疏散星團；星際介質、氣體、塵埃、磁場、宇宙射線；距離階梯；星系、正常及活躍星系、噴流；重力透鏡；大尺度結構；牛頓宇宙學、宇宙的動力膨脹及溫度發展歷史；宇宙背景微波輻射；大霹靂核合成。
  3. The algorithms of microprocessor distance protection emulated and calculated in this paper are used to realize the inverse time characteristic of microprocessor distance protection

    本課題模擬計算的保護演算法用於實現高壓線路微機距離保護的反時限。微機距離保護是高壓線路的重要保護之一。
  4. In the application of mini - micro - robot visual perception, there is a need for fish - eye lenses for capturing wide field of view for navigation. though fish - eye lenses provide a wide field of view ( 180 ), they introduce significant distortion in images and the acquired images are quite warped, which makes conventional camera calibration algorithms no longer work well. this paper presents an accurate calibration framework for fish - eye lens ( a high distortion lens ) camera stereo vision system. the accurate calibration model is formulated with radial distortion, decentering distortion and thin prism distortion based on the fisheye deformation model. using fish - eye and non - linear camera model, the author employs levenberg - marquardt method to realize precise non - linear calibration for wide - view - scene dense depth image recovery

    魚眼鏡頭成像立體視覺系統在微小型機器人視覺導航和近距離大視場物體識別與定位中有著廣泛的應用.盡管魚眼鏡頭攝像機具有很大的視場角（接近180 ） ，但同時也引入嚴重的圖像變形，常規的攝像機標定方法無法使用.該文提出一種標定魚眼鏡頭攝像機立體視覺系統的方法.在魚眼鏡頭變形模型的基礎上，通過考慮魚眼鏡頭成像的徑向變形、偏心變形和薄棱鏡變形，建立了魚眼鏡頭成像的精確成像模型，然後，利用非線性迭代演算法，精確求解攝像機外部參數、內部參數.實驗表明，使用該方法得到的立體視覺系統參數滿足精確恢復大場景稠密深度圖的要求
  5. In computation of swept volume approximation, an improved technique to generate the swept volume approximation for arbitrary meshes is presented by introducing generator simplification and path resample using frenet moving frames along the discreted sweeping trajectory. other steps, such as a directed distance field computation on a uniform grid based on the hardware accelerated computation technique and iso - surface extraction using marching cubes algorithm, are also included in this algorithm. in addition, the simplification scheme and smoothing technique are applied to the swept volume generated from iso - surface extraction

    本文的主要貢獻在於：在掃描體逼近計算方面，在原有任意多邊形網格模型沿任意路徑運動生成掃描體逼近演算法的基礎上，提出了加入對掃描母體簡化的預處理和用活動標架對掃描路徑進行重采樣等過程，演算法的其它過程還包括：計算掃描體中幾何基元的排列，用硬體加速構造無符號的有向距離場，將無符號距離場轉化為有符號距離場，從有符號有向距離場提取等值面等。
  6. Traditional coding algorithms are based on simple n - gram models. those distant constraints and some redundancies in natural language, such as word order redundancies, semantic redundancies and syntactic redundancies, are neglected in the n - gram models. in order to find and reduce those redundancies, we need more intelligent algorithms based on more effective models

    通用無損數據編碼是數據壓縮領域的一個重要的分支，現有的無損數據編碼方法大多是基於n - gram模型的， n - gram模型忽略了自然語言中的遠距離約束和諸如詞序冗餘、語義冗餘、句法冗餘等冗餘，為了找出並減少這些冗餘，需要更有效的語言模型和更智能的演算法。
  7. Based on many references, a evaluating function is proposed with performance index of hall call waiting time ( hwt ), people number in a car, energy consuming. the statistic approximation algorithm for hwt is introduced, based on the analysis of elevator traffic state, the calculation of traveling distance and stop number is explained in detail in the thesis. according to the characteristics of the elevator, a group of elevator teaching signals are constructed, by which the weight coefficients are trained according to the widrow - hoff rule

    本文在借鑒了大量的文獻基礎上，提出以平均等候時間、轎廂人數、能源消耗為性能指標的評價函數；詳細介紹了乘客待梯時間hwt的統計近似演算法；基於對電梯交通狀況的分析，對停層次數和運行距離這兩個重要參數的計算進行了詳盡的介紹；依據電梯運行特性參數，構造一組電梯運行教師信號，並採用神經網路的widrow - hoff學習規則訓練權系數。
  8. It introduces the method of distance transform to the traditional skeleton algorithm to get the weight for describing the importance of the skeletons

    該演算法在傳統骨架演算法中引入距離變換，獲得目標各部分骨架的權值，用其描述各部分骨架的重要性。
  9. Applying relative arithmetic to all kinds of faults and calculating off - line, we can master time - distance relation chart for all kinds of faults. computation indicates : when transmission lines occur faults, the data window of protection algorithm consisting of prefault and postfault data at the same time has important significance. the following methods are useful to achieve the inverse time characteristic : calculating impedance by using flourier in a full cycle, calculating work voltage by using fault component, calculating the torque created by a phase comparator or a magnitude comparator

    實際的計算表明：輸電線路發生故障后，用故障前後的數據同時充滿保護演算法的數據窗，對于快速切除近區故障具有很重要的意義；同時利用故障前後的數據，下述方法可以比較好地實現距離保護的反時限特性：直接用全周傅里葉演算法進行阻抗計算；採用工頻變化量阻抗繼電器進行工作電壓的計算；採用轉矩的思想進行轉矩的計算。
  10. At the beginning of 60 years, laser radar whose primary function is to measure distance appeared. developping for nearly half century, laser rader have been widely applied in many areas, especially in military application because of its particular merits such as high angle - solution, high - speed - solution, high - ditance - solution, nice - anti - jamming ability and good consealment. recently, in iraq war, the precision control and guide weapons depend on laser radar techniques embodied their powerful abilities. the laser radar technique is a very important part in u s military system

    歷經半個多世紀以來，激光雷達以其高角解析度，高速度解析度，高距離解析度，強抗干擾能力，好的隱蔽性，以及出色的全天候工作能力在很多技術領域尤其是軍事領域中得到廣泛的應用。最近的伊拉克戰爭中，以激光雷達為依託的精確制導武器顯示出了其強大的作戰能力，激光雷達技術在美軍作戰系統中扮演著重要的角色。
  11. Also, the algorithm about inner and outer point of polygon, the overlapping about polygons, the bumping region of polygon, the bumping zonal region of polygon and the least bumping distance of polygon are realized

    實現了多邊形內外點的判定、多邊形重疊的判定、不規則件碰撞區域的確定、不規則件碰撞帶狀區域的確定和排樣中最小碰撞距離等相應的演算法。
  12. This feature perfectly combine the frequency in acoustics level and the temperament in music semantic level, we use the cosine distance of this feature to represent the similarity of two music clips, then we design a group of algorithms that is inspired from the thought of edit distance and dynamic programming. they segment the feature vectors into groups at first, then through group similarity match, group recurrent detect, merge recurrent group and structure label joined algorithms to complete the music structure label task. because this is a really new field of research and no good method of evaluation had been finding, we propose a new evaluation method and the results of the experiments show that it is a good method

    然後設計了一組源於編輯距離和動態規劃思想的音樂結構分析演算法，首先將特徵向量分組，然後經過組相似匹配、組重現檢測、重現組歸並和自動標注四個前後銜接的環節實現了音樂結構的自動標注，較好地實現了將音頻形式的音樂自動標注為表示音樂結構的三元組列表形式，由於這是一個新的領域，目前還沒有比較好的量化評價方法，本文提出一種新的評價方法，並用它來評價結構分析的結果，取得了較好的效果。
  13. In geometry fitting, we introduce the scattered data interpolation technology, and by using the corresponding points on the shared boundary between the given facial mesh and the organ to be pasted, the facial mesh can be automatically fitted to the organ to be used. and in texture fitting, we extend the improved field - based morphing algorithm to the corresponding texture map, and with the preprocessing of the histogram - matching method we can obtain smooth replacing result in the texture map

    在紋理上，將改進的場變形演算法拓展到人臉模型對應的紋理圖上，不但完成了紋理圖中對應器官區域的替換，同時通過引入以點到邊界距離的函數為權重的線性插值，實現了在替換器官區域從目標圖像到源圖像的均勻過渡；又通過引入直方圖規定化的技術，解決了由於膚色相差較大而產生的邊界不能平滑過渡的問題。
  14. Among all proposed wireless mobile adhoc routing protocols, adhoc on - demand distance vector routing ( aodv ) and dynamic source routing ( dsr ) are the most prominent. we do research on distributed algorithms, mainly the multi - dimensional interval routing scheme on hypercube and the routing algorithms on adhoc network

    目前， adhoc無線網路設計的研究主要集中於分散式路由技術，在所有的adhoc請求路由演算法中， adhoc請求距離向量路由和動態源路由是重要的請求路由演算法。
  15. In the paper, the gpr system developed by us employs several optimization techniques to enhance the system performances, including antenna, sampling - hold circuit, orientation wheel, function of system software, multithreading, and signal processing algorithms. as the result the system works more well with these techniques, and its azimuth and distance resolution of 10 cm has been achieved with detection depth of more than 50 cm. the main contents of this dissertation are summarized as following : 1

    本文根據探地雷達系統工作原理，在電子科技大學探地雷達系統樣機研製的基礎上採用了各種有效的優化技術，包括探測前端、采樣保持電路的優化，定位輪、目標定位、多線程技術的應用，數據採集處理和控制軟體功能的拓展、各種有效的信號預處理演算法的應用等，顯著提高了系統的探測性能和增強了探測效果，使得系統方位、距離解析度均達到了10cm ，探測深度大於50cm ，其性能指標達到國外先進水平，為進一步的實用化奠定了重要的基礎。
  16. Genetic algorithm is using here to provide a good way to make different robots away from each other and near to their last destination during a map - building job. lower percentage of repeated searching and collision is then proven by computer simulation

    利用遺傳演算法使多個機器人盡量保持相互遠離並且距離原來的位置最近的狀態下進行環境探索，模擬實驗證明該演算法可以減少多機器人重復探索的幾率，並使機器人間碰撞幾率得到很大程度的降低。
  17. Overlapped seeds are separated by certain algorithm. the key problem in hole - drill planter test is locating of holes centers, which is solved by using geometry moments of discrete masses. and then the holes distance is calculated from holes centers with fairly high precision

    針對穴播機檢測中穴距測量的關鍵問題，研究了基於幾何中心矩的穴播質心、穴間距離檢測演算法，獲得較高的檢測精度；研究了基於數學形態學的重疊種子圖像檢測演算法，定義了串聯、並聯的種子分佈形式，對重疊、擠挨種子的分割進行了有效的工作。
  18. Due to the unique, stable and live physiological properties of the iris and non - invasive to users, most stable and reliable for identification in practical applications of iris - based system, iris recognition is receiving extensive attention and becoming an active topic in biometrics. as an application - oriented research project, iris recognition integrates mathematic, computer science, optics, electronics and physiology etc. based on wavelet transform, aimed to improve the recognition performance, centered at wavelet - based iris feature representation and pattern classification, we review and explore the iris sequence image quality assessment, iris image pre - processing, iris recognition performance evaluation and several other linked topics. we mainly investigate on the principles and application methodology of wavelet transform for iris feature representation and iris pattern classification methods

    以小波變換技術為基礎，結合圖像處理和模式識別方法，設計並開發了虹膜圖像採集裝置，建立了虹膜識別演算法測試實驗平臺;重點研究了虹膜識別中的小波變換的應用基礎理論與關鍵實現技術;提出了基於小波局部模極大值的虹膜特徵表示及其多重匹配識別、基於小波多尺度信息的一維和二維虹膜紋理特徵量化表示、基於小波過零點技術的虹膜特徵表示及其規范化的部分hausdorff距離匹配識別，這三類方法能夠有效地提取虹膜特徵;基於自建的演算法測試平臺，對上述三類方法和其他三種國內外比較有影響的基於小波變換的虹膜識別方法進行了定量的性能比較和評價，通過實驗數據分析得到了有意義的結論;最後指出了小波變換技術在虹膜識別領域的研究重點與發展方向。
  19. The research for key techniques of turbo codes is processed. it includes, ? the design of optimal component codes and the performance of asymmetric turbo codes are analyzed ; ? a search algorithm for short random interleaver based on the distance spectrum and ids criteria is carried out and simplified ; ? random puncturing method to improve the weight distribution of turbo codes with some special code rates is analyzed and simulated. ? the effect of different schemes of trellis termination to the performance of turbo codes is analyzed ; ? a new low complexity decoder structure is provided ; 5

    對turbo碼的部分關鍵問題進行分析和改進，主要包括： ?分析了最優分量碼的設計和非對稱turbo碼的性能； ?設計了基於距離譜和ids的短隨機交織器搜索演算法並進行了簡化； ?提出了採用隨機刪余方式改善特定高碼率turbo碼重量分佈特性的方法； ?分析了不同編碼器狀態歸零方案對turbo碼性能的影響； ?提出了一種降低實現復雜性的turbo迭代譯碼器結構。
  20. Chapter four briefly researches the principle of range migration algorithm. the relation and difference between frequency scaling algorithm and range migration algorithm are studied carefully. through the point simulation under ultra wide - band system parameters, we compare their imaging performances

    第四章簡要介紹了距離徙動演算法原理，著重分析了頻率scaling演算法和距離徙動演算法之間的聯系及區別，並通過超寬帶（ uwb ）系統參數下的點目標模擬比較了它們的性能。
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