a posteriori造句

• The a posteriori plan was thought out after he learned how to play the game
  在他学会要怎麽玩这个游戏之后，推演的计画就想出来了。
• Maximum a posteriori restoration with markov constraint for three - dimensional optical - sectioning microscopy
  三维显微图像复原及点扩散函数的研究
• A posteriori , what could you have done differently to improve your performance in this simulation
  如果是你，你将对此模拟个案提出怎样不同的解决方案
• Residual a posteriori error estimate two - grid methods for the steady navier - stokes equation with stream function form
  方程流函数形式两重网格算法的残量型后验误差估计
• A posteriori error estimation based on stress super - convergence recovery technique for generalized eigenvalue problems
  基于应力超收敛恢复技术的广义特征值问题后验误差估计
• 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
  本文最后对最大后验概率估计法进行了研究,给出了最大后验概率估计法的原理、方法和步骤。
• 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 .论述了turbo均衡的基本原理，推导了基于后验概率和干扰消除的5150均衡算法，给出了性能仿真结果。
• 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 )为了解决说话人确认中存在的模型不匹配问题,尝试将语音识别中的贝叶斯自适应算法引入到基于高斯混合统一背景模型的说话人确认系统。
• 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 )根据不同的前提条件，采用似然比的方法推导了宽带匹配场反演的最大似然目标函数；深入地研究了宽带匹配场处理中的相干与非相干问题；在分析参数反演的敏感性之后，提出了浅海环境参数宽带匹配场反演的多步优化策略，并与全参数反演方法进行了性能上的仿真比较。
• 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
  接着，对自适应调制系统中的信道估计问题难点，详细推导了平衰落信道条件下和选择性衰落信道条件下最大似然( ml )估计和最大后验概率( map )估计算法，针对平衰落信道，我们仿真了map估计和ml估计的方差与导频符号长度的关系，仿真结果表明，错误方差受多谱勒频率的变化影响最大，并且对实际的自适应调制系统，导频符号长度的取值超过20个符号长度时， map信道估计明显优于ml信道估计。
• Among others , the probability analysis approach has difficulty in deciding objective probability , and thus it is necessary to obtain subjective probability through expert empirical prediction , modify it by the bayesian formula and get a posteriori probability , and substitute it for objective probability in risk measurement and risk premium calculation
  其中，概率分析方法在应用中就存在客观概率不易确定的难点问题，因此需用专家经验预测法得到主观概率后，利用贝叶斯公式加以修正并获得后验概率，再用后验概率代替客观概率进行风险的度量及风险收益的计算。
• 3 , on the base of the traditional spatial filtering , the author present , a new despeckle algorithm , that make use of iterated processing and correlated neighbourhood model , iterated filtering method of the sar image combining the correlated neighbourhood model with maximum a posteriori filter . first , a series of templates refecting direction information are established and every template is present for a kind of neighbour structure . then on the basis of sar images statistical property , the maximum a posteriori estimate of the real intensity under observation image values is got by bayes formulatio - n
  3 、针对传统空间滤波器的不足，引入迭代处理和相关邻域模型的概念，提出了基于相关邻域模型的最大后验迭代滤波。该算法引用一系列反映局部边界特征的邻域模型，以描述图像的细节。引入强度的先验概率分布模型，利用bayes方法，对各个结构进行实际强度的最大后验估计。
• In this paper , we aim at the research to the decoding algorithm of turbo product codes , according to the principles of the log - likelihood ratio and the maximum a posteriori criterion , bunt the log - likelihood ratio approximating expression , form the correct strategy of iterative soft decoding , and present the optimal algorithm through software
  几乎所有tpc的应用研究都集中于采用矩阵交织，软进/软出（ siso ） 、重复译码的方式上。本文主要是针对tpc译码算法进行研究，依据对数似然概率（ llr ）和最大后验准则的原理，推导出对数似然概率估算的近似公式，形成tpc重复软译码纠错算法，并通过软件实现。
• Such code is also called gradually good code or shannon code . in 1993 , c . berro etc . firstly proposed a new channel code method - turbo code , which employed recursive systematic code 、 the random interleaver 、 map ( maximum a posteriori ) algorithm and iterative decoding algorithm obtained the capacity that had only 0 . 7db difference compared to the shannon limitation
  1993年c . berro等首先提出了一种全新的信道编码方式? turbo码，采用递归系统码与随机交织器构造turbo码，并将map ( maximumaposteriori )算法和迭代算法应用于解码过程，获得了与香农理论极限仅差0 . 7db的性能。