1) Ergodicity
[,ə:ɡə'disiti]
各态历经
1.
Discussion is also made of their mean, correlation, stationary and ergodicity.
用一个统一的表达式归纳和总结了各种 Rayleigh衰落信道仿真模型 ,根据表达式中参数的假设条件不同 ,将现有的仿真模型分为 4类 ,分别讨论它们的均值、相关统计特性、平稳特性和各态历经特性。
2.
Thermodynamical funcions of the few-body hard-sphere system when it reaches ergodicity are discussed in detail by using microcanonical ensemble method.
利用微正则系综详细地讨论了少体硬球系统达到各态历经时的热力学函数。
2) ergodicity
[,ə:ɡə'disiti]
各态历经性
1.
On the basis of concept of smooth stochastic field ergodicity, conditions that soil strata are satisfied with ergodicity are discussed; and equations of calculating space mean variance and correlative distance are deduced.
阐明了平稳随机场的空间统计特性,根据平稳随机场各态历经性概念,讨论了土层满足各态历经性的条件,以及计算空间平均方差和相关距离的公式。
2.
The testing method about how to verify the stationarity and ergodicity of soil profile is recommended.
对随机场理论应用于海洋土地基可靠度研究中的必要性及其理论意义进行了深入的分析和探讨,提出了检验土性指标的平稳性和各态历经性的方法,结合渤海油田在开发和建设中积累的大量工程地质勘察资料,对海洋土竖直和水平向土性剖面建立齐次正态随机场模型。
3.
In this paper, the state of inspection system which is exploited on integrated circuit chip pin size is analyzed by SAS software based on stationary stochastic process theory The test results show, that inspection results of the system are a stationary stochastic process with ergodicity .
测试 结果表明,整个系统的测量结果是一个具有各态历经性的平稳随机过程,因此,我们利用一段 样本值就能估计整个过程的均值和标准差,从而获得整个过程的性质。
3) ergodic capacity
各态历经容量
1.
An explicit formula for the ergodic capacity of orthogonal frequency division multiplexing(OFDM)-based multiple-input multiple-output(MIMO) systems under correlated frequency selective Rician channels is derived,by simplifying the channel response matrix in frequency domain into the so-called ‘Kronecker’ model composed of three kinds of correlations i.
通过将离散频域表示的信道冲击响应矩阵等效为由多径间相关和收发两端空域相关三者所确定的"Kronecker"相关信道模型,推导出了频率选择性莱斯衰落信道中MIMO-OFDM系统在同时具有这三种相关性条件下的各态历经容量公式。
2.
The ergodic capacity and optimal power allocation policy of broadband MIMO-OFDM systems in wireless fading channels is derived based on the system model.
推导了MIMO-OFDM系统在衰落信道下的各态历经容量、最优发送策略、使用等功率分配时的容量上界以及相对于单天线OFDM系统的容量增益。
3.
An explicit formula for the ergodic capacity of orthogonal frequency division multiplexing(OFDM)-based multiple-input multiple-output(MIMO) systems under correlated frequency selective Rayleigh fading channels is derived,by simplifying the channel response matrix in the frequency domain into the so-called "Kronecker" model composed of three kinds of correlations,i.
通过将离散频域表示的信道冲击响应矩阵等效为由多径间相关和收发两端空域相关三者所确定的“Kronecker”相关信道模型,推导出频率选择性瑞利衰落信道中MIMO-OFDM系统在同时具有这3种相关性条件下的各态历经容量公式。
4) generalized ergodic
广义各态历经
5) quasi-ergodic principle
准各态历经原理
6) quasi-ergodic system
拟各态历经系统
补充资料:各态历经假说
各态历经假说 ergodic hypothesis 企图把统计规律还原为力学规律的一种假设。1871年由L.玻耳兹曼提出。他认为,一个孤立系统从任一初态出发,经过足够长的时间后将经历一切可能的微观状态。20世纪初,P.厄任费斯脱夫妇又提出了准各态历经假说,把上述假说中的“历经”修改为“可以无限接近”。 各态历经假说或准各态历经假说的基本思想是,认为系统处于平衡态的宏观性质是微观量在足够长时间的平均值,企图用力学理论证明统计物理学的基本假设。 当研究对象从少量个体(如分子、原子)变为由大量个体组成的群体时,后者所遵循的统计规律与前者所遵循的力学规律本质上是不同的,统计规律不是力学规律的结果,不能由力学规律推导出来。因此,试图把统计规律还原为力学规律的各态历经或准各态假说是不正确的,满足假说的系统并不存在,这类假说不能代替统计规律作为统计物理学的基础。 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条