最概然誤差 的英文怎麼說

中文拼音 [zuìgàiránwùchā]
最概然誤差 英文
most probable error
  • 最 : 副詞（表示某種屬性超過所有同類的人或事物） most; best; worst; first; very; least; above all; -est
  • 概 : Ⅰ名詞1 （大略） general outline 2 （神氣） manner of carrying and conducting oneself; deportment ...
  • 然 : Ⅰ形容詞（對; 不錯） right; correct Ⅱ代詞（如此; 這樣; 那樣） so; like that Ⅲ連詞[書面語] （然而）...
  • 誤 : Ⅰ名詞（錯誤） mistake; error Ⅱ動詞1 （弄錯） mistake; misunderstand 2 （耽誤） miss 3 （使受損害...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 誤差 : error
  1. And then facing the problem of the channel estimation of the adaptive modulation system, we conclude out the channel estimation algorithms on maximum likelihood ( ml ) estimation and maximum a posteriori ( map ) estimation under the condition of flat fading channel and selective fading channel in detail. to meet flat fading channel, we simulate the relationship of the ratio between the error covariance in map estimation and ml estimation and pilot symbol message length. the conclusion can be drawn from these results

    接著，對自適應調制系統中的通道估計問題難點，詳細推導了平衰落通道條件下和選擇性衰落通道條件下最大似然（ ml ）估計和最大后驗概率（ map ）估計演算法，針對平衰落通道，我們模擬了map估計和ml估計的方差與導頻符號長度的關系，模擬結果表明，錯誤方差受多譜勒頻率的變化影響最大，並且對實際的自適應調制系統，導頻符號長度的取值超過20個符號長度時， map通道估計明顯優于ml通道估計。
  2. When dicussing reliability design and reliahbaiiy ensuring methods, a new reliability calculating model of petroleum logging tools is presented, reliability assurimg technologies should be taken in petroleum logging tools and their using approaches are presented and stated from electricity design and mechanical design, reliability system model of petroleum logging tool is set up according to the latest reliability theory, reliability indexes of petroleum logging tool and their acquiring ways are discussed, the reconmended reliability indexes ( mwture, nolwnm, mtbf, mttf ) of petroleum logging tool are presented : the mean working time under rated error ( mwture ) of the new tool is obtained through experiments. when studying data processing methods, the property of gamma - ray signal is stated and the type of it ' s measuring error is examined using statistical method, the basic theory of digital filtering and the basic situation of digital filtering methods are introduced and analyzed, the factors affecting digital filtering effect to gamma - ray signal and the effect of digital filtering to logging curve are analyzed, the evaluting criteria ( rvi, rmse, sfi ) of digital filtering effect are set up from two aspects, named as real value acquiring of steady section and the formation boundary checking and processing, the related filtering methods and examining methods are given out. the design methods of digital filter used to process gamma - ray signal are discussed, the mixed filtering scheme of natural gamma - ray log is presented, the realization ways are discussed. the selective filtering system and it ' s realization flow are given out through quantitive reseaching to part of digital filters, three new filtering sheme will be used to process gamma - ray signal in era2000 logging system

    在探討可靠性設計與可靠性保障技術時，提出了石油測井儀器的可靠性計算新模型，從電氣和機械兩個方面，提出並闡述了應採用的可靠性保障技術及其使用方法：根據最新可靠性理論，建立了石油測井儀器的可靠性系統模型，探討了石油測井儀器的可靠性指標及其獲取途徑，提出了推薦使用的石油測井儀器可靠性指標（ mwture ， nolwnm ， mtbf ， mttf ） ；通過試驗，得到了所設計儀器的穩定工作時間（ mwture ） 。在研究數據處理方法時，闡述了伽瑪信號的特徵，對測量誤差類型進行了統計檢驗；介紹了數字濾波的基本理論、數字濾波方法的概況，並進行了分析；對伽瑪信號數字濾波效果的影響因素及其對測井曲線的影響進行了基本分析；從獲取平穩段真值、地層邊界的檢測與處理兩個方面，建立了數字濾波效果的評價準則（ rvi ， rmse ， sfi ） ，給出了相應的數字濾波方法及效果評價方法；探討了自然伽瑪信號數字濾波器的設計方法，提出了適合自然伽瑪測井的混合濾波方案，探討了混合濾波方案的實現途徑；通過對部分數字濾波方法的定量研究，給出了靈活可選的數字濾波系統構成及實現流程；提出的三種濾波方案，將用於era2000成像測井系統，對自然伽瑪測井數據進行濾波處理。
  3. The fuzzy probabilistic data association of multiple targets tracking is presented in this paper, which define a target ? uzzy set on the measurement set at time k and then use fuzzy least mean square error method to estimate target states

    給出了一種多目標跟蹤的模糊概率數據關聯方法，該方法在k時刻的回波集上定義一個目標模糊集，表示回波與目標之間的模糊關系。然後基於目標模糊集，利用模糊最小均方誤差估計方法對目標狀態作出估計。
  4. And use relative fitting error to measure statistical data non - uniform error ; then introduce the method systematically of using the fuzzy comprehensive evaluation method to carry on the overall superior test of the government statistical data quality. includes the establishment of step level appraisal target system, target weight determination, calculates the factor weight in various levels, uniform test of judgment matrix, and built up the final fuzzy comprehensive evaluation model of the government statistical data quality according to the above - mentioned standard ; finally selects the partial main social economy total quantity target from chinese statistics yearbook 2003 to carry on the real diagnosis analysis : ( 1 ) confirm these social economy total quantity targets using the description statistics and the k - s inspection method to obey the lognormal normal distribution. ( 2 ) according to the two levels of inspection methods which this article proposed to carry on accuracy and the overall superior test for these social economy total quantity targets

    本文首先從統計數據及質量的涵義出發，全面系統的介紹了統計數據質量的概念;其次，從研究統計數據的分佈規律入手，對統計數據準確性檢驗問題進行了探討，利用對數正態分佈檢驗對反映研究對象規模大小的統計數據的質量及異常數據進行定量檢查和識別，並利用相對擬合誤差計量統計數據的非一致性誤差;接著系統介紹了利用模糊綜合評價方法對政府統計數據質量進行整體優度檢驗的思路，具體包括建立遞階層次的評價指標體系，指標權重的確定，計算各層次中因素的權重，判斷矩陣的一致性檢驗，並根據上述標準建立了最終的政府統計數據質量模糊綜合評價模型;然後通過從2003年中國統計年鑒資料中選取部分主要的社會經濟總量指標進行實證分析: （ 1 ）利用描述統計和k - s檢驗法來驗證這些社會經濟總量指標服從對數正態分佈的規律; （ 2 ）按照本文提出的二級檢驗法來對這些社會經濟總量指標進行準確性和整體優度檢驗，從而達到綜合評價政府統計數據質量的目的;最後對這種二級檢驗法的優點和不足進行小結，提出今後應該努力改進的方向。
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