efficient estimation 中文意思是什麼

efficient estimation 解釋
有效估量
  • efficient : adj. 1. 有效的，有力的；效率高的。2. 有實力的；有能力的，有本領的；能勝任的。adv. -ly
  • estimation : n. 1. 估計，評價。2. 預算，預算額；概算。3. 尊重，尊敬。4. 意見，判斷。5. 【化學】估定；測定。
  1. Experiments show that the efficient motion estimation algorithm proposed can further reduce block matching distortion computations relative to conventional fast motion estimation algorithms with neglectable coding efficiency loss ( within 0. 1db )

    提出一種基於節點模型的可變形塊匹配運動估計演算法來搜索最佳運動矢量。實驗表明，在編碼性能損失很小的條件下，可以使得運動搜索塊匹配的運算量在通常快速運動搜索演算法的基礎上下降61 % 。
  2. 8 abidi m a, chandra t. a new efficient and direct solution for pose estimation using quadrangular targets : algorithm and evaluation

    這樣，就引出了p3p問題的兩個主要研究分支：演算法和解的個數判定。
  3. The first facet is to put forward four - step block matching algorithm which can deduce the time of motion estimation and improve the coding efficiency, based on the traditional motion estimation algorithms. the second facet is to propose a new rate control algorithm, that is average - reaction rate control algorithm, based on the rate control of mpeg2. the new rate control algorithm can achieve rapid and efficient adaptive coding

    首先在對傳統的運動估計演算法進行研究和改進的基礎上，提出了四步搜索塊匹配的運動估計演算法，減少了運動估計的時間，提高了編碼效率；其次在分析mpeg2比特率控制的基礎上，提出了一種新的比特率控制演算法? ?平均響應比特率控制演算法，該演算法能夠快速有效的實現自適應編碼。
  4. Tricepstrum equalization algorithm ( btea ) and super - exponential ( se ) algorithm based on block data estimation is studied, and these algorithms use hos explicitly. their performance, such as estimation variance and bias, is analyzed. a kind of sparse cross cumulant and sparse equalizer is proposed to simplify the se algorithm, and the simulating results show efficient reduction in complication

    ?研究了幾種直接使用高階統計量的演算法，包括基於數據段估計的倒三譜演算法和超指數演算法，分析了演算法的估計方差和偏差等性能；由於超指數演算法計算量較大，不利於實時均衡，利用水聲通道的稀疏性，提出了一種基於稀疏互四階累積量和稀疏權的演算法，有效降低了超指數演算法的計算量。
  5. Second, we compute the self - impedance through cavity modal theory and mutual impendance based on reaction theory respectively. then the generalized impedance matrix that reflects the effect of mutual coupling is formed. at last, the effect of mutual coupli ng on 2 - d doa estimation algorithms is investigated and two efficient methods of mutual coupling compensation are proposed

    本文首先對兩種二維doa估計演算法? ssm法和二維酉esprit法的性能進行了比較，用空域平滑演算法解決了相干源的二維doa估計；其次運用腔模理論計算微帶天線的自阻抗，用反應原理計算微帶天線間的互阻抗，進而形成計入互耦影響的廣義阻抗矩陣；討論了互耦對二維doa估計的影響，提出了兩種互耦補償的方法。
  6. Speed - up techniques for gate - level power estimation are proposed. an efficient power estimation flow is presented firstly to reduce the power simulation time

    本文的主要貢獻如下: 1 .提出了加速門級功耗模擬與分析的方法。
  7. Reliability assessment of xi - luo - du underground water - power plant : the results have been used by the cheng - du surveying, design and research institute for the preliminary design ; （ 2 ） the stress and strain analysis for the xiao - guan - zi sluice and its foundation : the report has been applied for the reinforcement of the foundation ; （ 3 ） the thermal control procedure for the no. 7 - 14 power plant dam segments of the three gorge project ： the research report provides the effective and efficient methods for the controlling of the temperature field in the mass concrete structure ; （ 4 ） the software system development for the long - term monitoring for dikes ： the software can automatically give the results of the seepage field and the probability of soil piping of dikes and underground ; （ 5 ） reliability assessment of xiang - jia - ba underground water - power plant : the results have been used by the zhong - nan surveying, design and research institute for the preliminary design ； （ 6 ） fatigue reliability estimation of shipping berthing pillar : the results give the optimized design scheme and prediction of the structural age ; （ 7 ） 3 - d static and dynamic stochastic finite element analysis for the strength, stability and thermal control problem for xi - luo - du project

    溪洛渡水電站超大型地下洞室群圍巖穩定的安全可靠性分析：被成都勘測設計研究院應用於比選報告及可行性論證中； （ 2 ）小關子水電站攔河閘壩及地基的應力應變分析：被成都勘測設計研究院應用於地基加固處理方案； （ 3 ）三峽廠房7 # - 14 #壩段溫控並縫措施研究：為廠房壩段並縫方案的可行性提供了依據； （ 4 ）堤防工程體系的長期監控預報預警決策系統開發：為監控、預測預報堤防滲漏管涌破壞提供分析軟體； （ 5 ）向家壩地下洞室群圍巖穩定的安全可靠性分析：被中南勘測設計研究院應用於初步設計方案中； （ 6 ）靠船墩的疲勞可靠度研究：為廣東航運規劃設計院的靠船墩優化設計和加固提供依據； （ 7 ）溪洛渡高拱壩壩體壩基（壩肩）強度和穩定的三維靜動力隨機有限元分析及可靠度計算：為溪洛渡重大工程壩體的靜動力安全穩定性及溫控方案提供依據。
  8. In this dissertation, some basic investigations on the bem of 3d elastic contact problem have been carried out, which can be listed as follows : at first, an early investigation of authors " group, on direct error estimation of bem solution for elasticity problem, is extended from 2d problem to 3d elastic contact problem. an accurate and efficient algorithm for the determination of boundary displacement, which is continuous with the displacement solution within the domain of an elastic body, is then presented

    本文對三維彈性體接觸問題的邊界元法做了若干應用基礎性研究，其中主要包括以下幾個部分：作者首先將本研究組提出的彈性力學問題邊界元解誤差的直接估計從二維推廣到三維問題，給出了確定與域內解連續的邊界位移的一種精確有效的方法。
  9. This paper deals with the problem of crosstalk mitigation at both methodological and algorithmic levels. noting that intermediate operations between global routing and detailed routing are very effective in crosstalk estimation and reduction, the authors propose to incorporate several intermediate steps that are separated in traditional design flow into an integrated routing resource assignment stage, so that the operations could easily cooperate to fully exert their power on crosstalk reduction. an efficient priority - based heuristic algorithm is developed, which works slice by slice

    在布線的各階段中，總體布線有較大的靈活性，但對各區域或信號線上的串擾難以估計詳細布線可以精確地計算串擾，但靈活性太小，往往出現反復拆線重布，難以達到設計收斂相比之下，總體布線和詳細布線中間的階段既有一定的靈活性，又可以相對準確地計算噪聲，是解決串擾問題的理想時機。
  10. A new efficient vlsi architecture for full search block matching motion estimation. in vlsi - soc, rm montpellier, france, 2001, pp. 253 - 264

    本文還為這種演算法設計了一個硬體結構，該結構可以實現全流水，一拍內完成一個運動向量的搜索。
  11. Frequency - domain equalization. at the same time discusses some key problems in ofdm : high ratio of peak - to - average power of output signals, problem of synchronization, channel estimation, adaptive bit, power and subcarrier allocation. emphasize on channel estimation, and present a new algorithm which can filtering more interpolation errors and noise. for the sake of improve the performance of resist narrowband noise and make efficient use of the spectrum apply malvar wavelet division

    同時就ofdm系統中的一些關鍵問題如峰值平均功率比（ papr ）太高，同步問題，通道估計，通道、比特與功率必須動態分配進行了研究，著重研究了通道估計問題並提出一種改進的方法，能濾除更多的噪聲分量和插值誤差，提高系統的性能；為了提高抗窄帶噪聲的性能和提高通道利用率，用malvar小波變換實現了不等帶寬分配。
  12. First, in chapter 2 block - based stereo video coding technologies are researched. based on the analyzing of the constraints of disparity distribution and corrections among disparity vectors as well as corrections between motion vectors and disparity vectors, fast algorithms for disparity estimation are proposed. experimental results show the proposed algorithms are efficient

    首先在第二章研究了基於塊的立體視頻編碼技術，重點分析了立體視頻中視差的特點及其分佈特性，研究了視差矢量和運動矢量之間的相關性，在此基礎上給出了視差估計的快速演算法，進行了實驗測試，實驗結果顯示快速演算法有很強的實用性，這是本文的一個創新點。
  13. The use of chaos in signal processing, communication and control has been a very active area of research in recent years. since chaos is a deterministic complex phenomenon, it opens up a new field for signal processing. this dissertation focuses on developing efficient algorithm for signal detection, parameter estimation of radar and also on radar signal generator

    本文研究屬于基於混沌的應用研究，主要從雷達信號檢測、參數估計、波形設計和圖像處理的數字水印四個方面較全面地討論了混沌理論及相關技術在信號處理系統中應用的可能性，探討了相應的信號處理演算法和實現過程。
  14. To manage large - scale xml documents with complicated structure, this dissertation focus on the efficient structural indexing algorithm for xml data, result size estimation problem for xml structure based query optimization, result relevance ranking algorithm, and infrastructure for xml query processing for both text - rich and data - rich xml documents. to address the aforementioned issues, this dissertation makes the following contributions. first, it investigates the drawbacks of existing indexing algorithm for xml data, and propose a dynamic indexing algorithm for xml data based on d - bisimilarity, difx

    為滿足結構復雜、大規模的xml數據管理需要，本文深入研究了xml信息檢索系統中的結構索引演算法設計和結構化查詢優化中的查詢代價估計問題，以及查詢結果和查詢條件間的相關度演算法，主要取得了4個方面的成果：第一，分析了已有的xml數據索引演算法中存在的問題，提出了一種高效的動態xml結構索引演算法difx ，它採用動態後向結構相似性（ d - bisimilarity ）的概念，可以根據實際查詢需求以及索引最優化的要求動態決定索引中保存的結構信息。
  15. Based on fourth - order cumulant, a computationally efficient method for joint estimating both directions of arrival and ranges of near field sources with known carrier frequency is firstly presented. the proposed algorithm need not any spectral peak searching and the 2 - d parameters are automatically paired. lt is suitable for arbitrary additive gaussian noise environment. in the following section, a 3 - d esprit method for jointly estimating of frequencies, doa ' s and ranges of multiple near - field sources with unknown carrier frequencies is proposed. the parameters estimation are given by the eigenvalues of different matrices. furthermore, its performances are confirmed by several computer simulations

    利用四階累積量，第五章首先給出了一種載頻已知的情況下基於近場源的距離和波達方向聯合估計演算法，通過構造的陣列輸出信號四階累量矩陣使空間信號到達方向和距離估計無需譜峰搜索，且參數自動配對，適合於任意高斯噪聲環境。進一步在第三節提出了一種載頻未知的情況下的多個近場窄帶信號源doa 、距離和頻率聯合估計的3 - desprit演算法。
  16. An efficient blind channel estimation algorithm for mimo - ofdm systems

    系統中的通道估計
  17. Standard guide for ranked set sampling : efficient estimation of a mean concentration in environmental sampling

    分等級抽樣的標準指南:環境抽樣中平均濃度的有效評估
  18. To overcome the affection of ici and awgn on the ls estimate of the transfer function at pilot tones, the proposed bispectrum - based channel estimation algorithm employ the suppression of ici and awgn components in the received pilot signals by bispectrum and then the accuracy of the estimation is improved. with the channel estimation at pilot tones, an efficient interpolation is necessary. an improved interpolation method based on transform - domain filtering is proposed, which employs dft / idft and filtering in a transform domain so that the effect of noise on the equalization is significantly reduced

    針對導頻處通道傳遞函數的ls估計中存在載波間干擾和加性高斯白噪聲的影響的這一問題，本文將傳統的ls估計方法與雙譜相結合提出了一種新型的基於導頻雙譜通道估計演算法，它利用了雙譜對高斯噪聲的抑制作用來減小接收到的導頻信號中的載波間干擾和加性高斯白噪聲的影響，從而提高了導頻子載波上通道估計的精度。
  19. Efficient channel estimation method for mimo - ofdm systems

    系統中一種有效的通道估計方法
  20. In this paper, by combining the multiscale representations of signals with data fusion techniques, we describe several algorithms for modeling stochastic phenomena at multiple scales and for their efficient estimation or reconstruction given partial and / or noisy measurements which may also be at several scales

    本文通過將多尺度信號表示和數據融合技術相結合，針對不同尺度上擁有不同特徵的多傳感器對同一隨機現象（目標狀態）進行觀測的動態系統，在不同尺度上建立起多尺度隨機動態模型，獲得了一些有效的狀態估計和重構演算法
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