Sampling distribution of sample mean average value of a probability distribute 样本平均值的抽样分布
Average value of a probability distribute They struck an average. 一种概率分布的均值他们已算出了平均值。
Observed cumulative failure probability average value of a probability distribute 累积失效概率的观测值一种概率分布的均值
But calculating the average probability for a group is much easier than calculating the same probability for any individual. 但计算群体的平均概率要比计算个体的概率容易得多。
Based on a concept of average contact mesh probability a mathematic model of probability screen was established, which shows the quantitative relation between the operating parameters and screening efficiency. 通过平均触网概率的提出,首次建立了筛分机操作参数与筛分效果之间有着定量关系的煤用概率分级筛筛分数学模型。
In addition, statistical and analytical approaches were employed to examine the testing results reliability and calculate the average probability of confidence limit. 另外,利用数理统计的方法对试验结果进行可靠性分析和可信限率计算。
Based on the analysis of the transmission characters of the ring networks that have self-healing function, a method of establishing mathematical model is discussed, and the relationship of the average rejection probability and the traffic is obtained. 基于分析该种具备自愈功能的网络传输特性,讨论一种建立环形网络的数学模型方法,获得了平均拒绝率与业务量之间的关系。
These two schemes define the average or maximum outage probability as the QoS for each class of traffic. 两种算法分别将平均或者最大中断概率定义为业务的服务质量,对用户的呼叫进行接纳控制。
The scheme based on the average outage probability improves system throughput as well as the wireless resources efficiency. 基于平均中断概率的策略能够提高系统的吞吐量和无线资源的利用率,而基于最大中断概率的呼叫接纳控制策略可以提供更好的QoS保证。
An upper bound on the average MAP decoding error probability of Slepian-Wolf systems for correlated general sources is derived, and a new proof of the direct part of the Slepian-Wolf theorem for correlated general sources is given based on this bound. 论文在相关一般信源下推导出Slepian-Wolf系统平均MAP译码错误概率的一个上界,并在此基础上,给出了相关一般信源下Slepian-Wolf定理正命题部分的一个新证明。
The algorithms including average probability algorithm and probability match algorithm for anomaly detection of this HMM are brought forward. 在此基础上,提出了两个用于实时异常检测的算法:平均概率法和概率匹配法,并和stide方法进行了比较。
The throughput and packets average drop probability of this protocol are analyzed and simulated in a fully connected network, the results of which indicate that this protocol is efficient to supporting real-time traffic and more suitable to MANETs. 在全连通网络中分析了DSRP协议的吞吐量和分组平均丢弃率,并且对协议进行了仿真,结果表明该协议能够达到传输实时业务的要求,适用于MANETs网络。
Explicit expressions are obtained for average probability of errors in information transfer intervals for the radio communication systems and the adaptive radio communication systems with representative arithmetic. 本文分析了非自适应系统和采用典型算法的自适应系统的信息传送的平均误码率。
An efficient approximation for expressions of the average error probability are developed based on considering the effects of multipath interference, multiple access interference and channel noise. 基于多径干扰、多址干扰和信道噪声的机理分析,推导了计算平均差错概率的有效近似公式。
Next, with the means of computer, we simulate the PRN work process, record the average transmission delay and the average packet lost probability. 运用该软件,模拟了分组无线子网的工作过程,并对系统的主要性能参数(网络的平均传输时延和平均丢包率)进行了统计。
Comparing with the known routing with flood searching, the dynamic routing protocol and algorithm is better than it in average probability, overhead cost and the length of the routing table. 与确知路由加泛搜索的仿真结果比较可知,本论文的动态路由协议及算法在路由概率平均、系统开销、路由表大小等方面要优于确知路由加泛搜索。
Firstly, the electricity price in the market is simulated by probabilistic methods, on this basis and by use of average probability of wins a multi-block bidding model that simulate optimal bidding strategy of generation company is built. 在研究初期以作为价格接受者的发电公司为研究对象,首先采用概率方法模拟电力市场中的电价并在此基础上采用等概率法建立了模拟发电公司最优报价策略的多段报价模型;
Statistics of average failure probability of high-voltage equipments is calculated, which are based on data from historic earthquake or some results of national projects. 根据历史地震资料和国家重大工程项目资料,统计了大量我国常用的电气设备在地震加速度峰值条件的平均破坏概率。
The transition probability and the transition rate as well as the average transition probability are derived using Laplace transforms. 利用Laplace变换法导出了多光子过程的跃迁几率、跃迁速率和平均跃迁几率。
Based on moment space theory and Gaussian approximation method, expressions of average error probability for system with multiple-access interference and white Gaussian noise environment are derived. 采用矩空间理论和高斯近似法分别得出该系统在多址干扰和白高斯噪声条件下的平均误码率表达式。
A study on the possibility of earthquakes occurrence in the future in East China, especially in the neighboring region of Shanghai has been undertaken by using the correlative analysis method, and the delayed correlation average probability in the both regions has been estimated. 用相关分析方法对华东地区尤其是上海附近地区未来发震的可能性进行了分析,并估算了两地区延迟相关的平均概率。
Test results on the rotor faults of induction motor show that this fault pattern recognition method by using the RBF network can not only be effective, but also improve the average probability of correct classification by a supervised selection of centers of the RBF network. 以感应电机转子故障分类的实验结果表明,这种神经网络模式识别方法是有效的,并且可以通过自动调节径向基函数中心提高网络分类的正确率。
The results of analysis show that: the average probability of error for digital data communication in slow Rayleigh fading channel is less one half magnitude than the optimized threshold detection with fading signal at same mean SNR. 结果表明,在Rayleigh慢衰落信道上采用这种检测器,相对于工作此信道上的最佳固定门限检测器,在不同输入信噪比情况下,其平均误码率约有半个数量级的改善。
The algorithm is detailed introduced in this paper, and applied to the fashion design. It is better than direct manipulation of interactive genetic algorithm both in the average convergence algebra and probability of convergence to the optimal solution. Finally, conclusions of the thesis are made. 文中对该算法进行了详细的阐述,并将其应用到服装设计中,通过实例验证了改进后的算法在平均收敛代数和收敛到最优解的概率都优于直接操作的交互式遗传算法。
Using these results, closed-form bounds are obtained for the average end-to-end SNR, the channel capacity, the average bit-error probability, and the outage probability. 利用这些理论结果,得到了平均端到端信噪比、信道容量、ABEP和中断概率等性能的闭式界。
Bayesian classification algorithm is used to detect anomaly nodes in inter-cluster, the anomaly detection of cluster-head nodes is detected by using average probability approach. 方案中贝叶斯分类方法被用来进行簇内节点的异常检测,平均概率的方法被用来进行簇头节点异常行为的检测。
With reviewing some general used reliability assessment methods of distribution system, by introducing the concept of average success operating probability of component, a new method is proposed based on success probability. 在分析一些常用的配电系统可靠性评估方法的基础上,引入元件平均成功运行概率的概念,提出了一种基于成功概率的配电系统可靠性评估方法。
The indexes of 6 goat populations in Shandong Province were calculated with Weitzman approach: ( 1). The extinction probability of each population was calculated by 10 non-genetic parameters, the average of extinction probability was 0.290. ( 2). 运用Weitzman方法,计算6个山羊种群(内蒙古绒山羊为参照种群)的遗传多样性指标:(1).根据10个非遗传参数计算灭绝概率,7个种群的平均灭绝概率为0.290。
For MIMO channels with fading correlation, a scheme is proposed to design the initialization matrix of differential space-time block code by utilizing the information about fading correlation. The design is conducted by minimizing the upper bound on the average pairwise error probability of the differential detector. 针对存在衰落相关性的MIMO信道,提出了利用衰落相关性信息设计差分空时块码的初始化矩阵的方法,设计准则是使差分检测的平均成对错误概率的上界达到最小。
The airflow characteristic parameters of wind sample are analyzed, such as average velocity, velocity probability distribution, turbulence intensity, self-correlation function and spectral function. 通过对不同环境下自然风和不同设备的机械风进行采样,建立风速样本数据库,对采样的风速样本进行平均风速、风速概率分布、湍流度、自相关函数和频谱函数等气流特性参数分析。