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      a posteriori是什么意思

        作者:恒星英語學習網     所屬分類:A開頭的英語單詞     

      a posteriori 是什么意思

      中文翻譯與英英解釋

      短語和例子
      a posteriori reasoning 歸納推理。
      a:    短語和例子 a , an an 用在以元音音素開始的詞 ...
      involving reasoning from facts or particulars to general principles or from effects to causes; "a posteriori demonstration"

      derived from observed facts

      derived from observed facts

      requiring evidence for validation or support

      例句與用法

      1.The a posteriori plan was thought out after he learned how to play the game
      在他學會要怎麼玩這個游戲之后,推演的計畫就想出來了。

      2.Maximum a posteriori restoration with markov constraint for three - dimensional optical - sectioning microscopy
      三維顯微圖像復原及點擴散函數的研究

      3.A posteriori , what could you have done differently to improve your performance in this simulation
      如果是你,你將對此模擬個案提出怎樣不同的解決方案

      4.Residual a posteriori error estimate two - grid methods for the steady navier - stokes equation with stream function form
      方程流函數形式兩重網格算法的殘量型后驗誤差估計

      5.A posteriori error estimation based on stress super - convergence recovery technique for generalized eigenvalue problems
      基于應力超收斂恢復技術的廣義特征值問題后驗誤差估計

      6.The efficiency of this algorithm can be recognized from the experimental results which are attached at the end of this thesis . this thesis ends with the study of the maximum a posteriori ( map ) method with
      本文最后對最大后驗概率估計法進行了研究,給出了最大后驗概率估計法的原理、方法和步驟。

      7.6 . the basic principle of turbo equalization is discussed and the siso equalization algorithms based on a posteriori probability and interference cancellation are derived . at last , the simulation results are provided
      6 .論述了turbo均衡的基本原理,推導了基于后驗概率和干擾消除的5150均衡算法,給出了性能仿真結果。

      8.3 ) we try to import the bayesian adaptation , which is widely used in speech recognition , into speaker verification . we use bayesian maximum a posteriori estimation training a speaker model from background model , to solve the problem of model miss matching in speaker verification system
      3 )為了解決說話人確認中存在的模型不匹配問題,嘗試將語音識別中的貝葉斯自適應算法引入到基于高斯混合統一背景模型的說話人確認系統。

      9.The main contributions are as follows : ( 1 ) de ( differential evolution ) algorithm is proposed to invert the ocean acoustic parameters in shallow water in order to get faster and more accurate results than ga ( genetic algorithm ) and sa ( simulated annealing algorithm ) . also a posteriori probability analysis method is applied to evaluate the uncertainty of inversion results . ( 2 ) maximum likelihood objective functions for broadband mfi are derived according to different conditions
      ( 2 )根據不同的前提條件,采用似然比的方法推導了寬帶匹配場反演的最大似然目標函數;深入地研究了寬帶匹配場處理中的相干與非相干問題;在分析參數反演的敏感性之后,提出了淺海環境參數寬帶匹配場反演的多步優化策略,并與全參數反演方法進行了性能上的仿真比較。

      10.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信道估計問題難點,詳細推導了平衰落信道條件下和選擇性衰落信道條件下最大似然( ml )估計和最大后驗概率( map )估計算法,針對平衰落信道,我們仿真了map估計和ml估計的方差與導頻符號長度的關系,仿真結果表明,錯誤方差受多譜勒頻率的變化影響最大,并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信道估計明顯優于ml信道估計。

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