密度演化,density evolution
1)density evolution密度演化
1.Adensity evolution procedure for low-density parity-check(LDPC) codes under layered decoding was presented.在对低密度校验码译码及密度演化算法研究的基础上,提出了分层译码的密度演化算法,对分层译码算法的噪声门限与收敛特性进行了仿真,并将分层译码与一般的置信传播及最小和算法做了性能比较。
2.Thedensity evolution of discrete dynamical system is introduced in Chapter 2.第二章介绍了离散动力系统的密度演化方法, 包括一些重要概念(如遍历性,混合性和正合性,渐近稳定性等)和结论(Birkho?遍历定理,动力系统的遍历性、混合性、正合性和渐近稳定性的刻画,绝对连续不变测度的存在性等)。
3.Based ondensity evolution theory which determines the performance of a code under certain degree distribution, the optimal degree distribution pairs can be found which makes it possible to const.在译码性能分析方面,密度演化理论将LDPC码的性能与码的度分布联系起来。
英文短句/例句
1.Reliability Analysis of Underground Structures Based on Probability Density Evolution Method基于概率密度演化方法的地下结构可靠度分析
2.Low Complexity Construction for BIBD-LDPC Codes Based on Density Evolution基于密度演化的低复杂度BIBD-LDPC码的构造
3.The Method of Density Evolution on the Reliability of the RepairableSystem of Series-Parallel Connection;串-并联可修系统可靠性的密度演化方法
4.Application of Density Evolution Method for Obtaining Up Days of Stock Market;密度演化方法在求解股市上扬天数中的应用
5.PROBABILITY DENSITY EVOLUTION METHOD-BASED NONLINEAR RANDOM SEISMIC RESPONSE ANALYSIS OF STRUCTURES结构非线性随机地震反应的概率密度演化方法
6.Aseismatic reliability analysis of nonlinear structures based on probability density evolution method基于概率密度演化理论的结构抗震可靠性分析
7.Probability density evolution analysis of nonlinear dynamical systems非线性随机动力系统的概率密度演化分析
8.Joint Inversion of Gravity and Magnetic Data with Varying Density and Constant Magnetic Susceptibility Interface Model变密度常磁化强度界面重磁联合反演
9.EVOLUTION OF GALACTIC DENSITY WAVES AT THE UNSTABLE STAGE星系密度波在不稳定阶段的演化规律
10.Study on the Optimization Inversion Algorithm of Photon Density Wave Scattering;光子密度波散射的优化反演算法研究
11.Modeling the Spatial Distribution of Urban Population Density and Its Evolution in Guangzhou;广州市人口密度分布及演化模型研究
12.Viewing from the history, the social changes have close connection with the changes of language and characters.从历史的角度看，社会的演化和语文的演化是密切关联的。
13.Modeling the spatial distribution of urban population density and its evolution in Hangzhou;杭州市人口密度空间分布及其演化的模型研究
14.Structural Evolution of Palladium Clusters and Heterogeneous Catalysis of Hydrogen Molecules: A Density Functional Theory Study;钯团簇结构演化、异相催化氢分子的密度泛函理论研究
15.Structural Evolution of Platinum Clusters and Heterogeneous Catalysis of Hydrogen Molecules: A Density Functional Theory Study;铂团簇结构演化、异相催化氢分子的密度泛函理论研究
16.Joint Inverse Study of Gravity and Seismic Data for 2D Multi-density Interfaces Basing on Integration of the Objective Function基于一体化目标方程的重震二维多密度界面联合反演方法研究
17.A Forward and Inversion Study on the Main Density Interfaces in Sichuan Basin;四川盆地主要密度界面正、反演研究
18.Modelling the Population Density Functions of Shanghai in 1990s;1990年代上海人口密度模型及演变
相关短句/例句
sub-density dimension次密度演化
3)probability density evolution method密度演化方法
1.A new method for probability density estimation based on theprobability density evolution method is proposed in this paper.利用密度演化方法,提出了随机变量概率分布估计的一个新方法。
2.The strategy of selecting points via sphere of contact inprobability density evolution method for the response analysis of stochastic structures is presented.密度演化方法是一类直接获取随机结构动力反应概率密度函数及其演化过程的有效方法。
3.In recent years, an originalprobability density evolution method, which is capable of evaluating the instantaneous probability density functions of stochastic responses of general multi-degree-of-freedom nonlinear structures, has been developed.在一般线性与非线性随机结构分析中,采用近年发展起来的密度演化方法,能够获得动力响应的瞬时概率密度函数及其演化过程,具有较好的精度。
4)probability density evolution概率密度演化
1.Reliability analysis of stochastic structures based onprobability density evolution method;基于概率密度演化方法的随机结构可靠度分析
2.A new stochastic structure analysis method, that is,probability density evolution method (PDEM) , is introduced firstly.介绍一种新的随机结构分析方法-概率密度演化方法,以及基于该方法的动力可靠度分析方法。
3.Theprobability density evolution method for the analysis of linear stochastic structural static respons is proposed.提出了线性随机结构静力反应的概率密度演化方法 。
5)density evolution method密度演化方法
1.Utilizing thedensity evolution method of vector Markov processes, we propose a probability formula of the number of the location areas crossed by a mobile.通过构造向量马氏过程,利用密度演化方法,我们导出了移动台越区次数的一个概率公式,并用此公式对现行的位置管理策略及指针推进策略的代价进行了研究。
2.Through the probabilitydensity evolution method, the instantaneous probability density function of response of double random vibration systems is numerically obtained.基于复合随机振动系统反应分析的密度演化方法,根据首次超越破坏准则,对密度演化方程施加相应的边界条件,进而求解密度演化方程,在安全域内积分给出结构的动力可靠度。
3.By using adensity evolution method, we can obtain the distribution, and the mean and variance of up days of the stock market.将股市上扬的天数转化为随机游程的长度,利用密度演化方法求得了股市上扬天数的分布以及均值和方差。
6)probability density evolution method密度演化理论
延伸阅读
非密度制约因素(见密度制约因素)非密度制约因素(见密度制约因素)l焦非密度制约因素见生态因素、密度制约后
