查询词典 cumulative

Exact closed-form cumulative distribution function expression of the signal-to-noise-plus-interference ratio was derived. The average capacity of MIMO MRC systems with multiuser diversity was presented.

导出封闭形式的信号干扰噪声比的概率分布函数表达式和以平均容量的形式给出的系统多用户分集性能表达式。

These spacings are valueswithin the interval[0,1]such that the inverse of cumulative distribution function atlarge sample quantiles is equal to the value of spacings.

这些线性估计依赖于被选择的顺序统计量，而顺序统计量的秩由一些间隔所确定，这些间隔是大样本分位数依分布函数的反函数在区间[0，1]上确定的数值。

Based on the model, closed-form expressions for cumulative distribution function of the output signal-to-interference plus noise ratio and symbol error rate of MIMO MRC systems with equal-power and unequal-power CCI are derived respectively.

在此基础上，分别推导出具有相等功率和互不相等功率的共信道干扰下系统输出信干噪比的累积分布函数和误符号率的闭合表达式。

Compared with the performance of the IEEE 802.16d standard, the IPR method achieves better Complementary Cumulative Distribution Function performance without BER performance degradation almost.

与IEEE 802.16d标准中峰均比性能相比，本文提出的方法能在几乎不损失系统BER性能的情况下，获得良好的互补累积分布函数性能。

It transforms the image based on the cumulative distribution function of histogram. However, there is a caveat to over-enhance the contrast when the auto-generated transform curve is too sharp due to some high peaks in the histogram.

但是当直方图的分布函数中某一个值特别大的时候，则会使产生的转换函数斜率过大，换句话说就是使影像过度增强，这会使输出影像太亮，清晰度反而下降。

The new upper bound on complementary cumulative distribution function of the PAPR of a band-limited OFDM signal is derived based on the level-crossing rate theory, and the Monte Carlo simulation of the PAPR distribution of a 16QAM-0FDM system with different subcarriers is carried out to test the tightness of the new upper bound.

基于越幅率理论推导了带限OFDM信号PAPR的互补累积分布函数的一种新的上边界，并针对一个16QAu-OFDM系统，对不同子载波数的PAPR分布进行了蒙特卡罗仿真，以验证新的上边界的紧密性。

Secondly, by the P-L estimation of survivor function, this paper proposed the regression models of polynomial cumulative hazard function distribution models, respectively in the case of complete date and random right censoring date; meanwhile generalized least squares estimations of unknown parameters were proposed respectively using two steps algorithm and principal component analysis algorithm.

与已有的关于多项式危险函数模型的研究成果相比，首先本文在统计模型的构造上充分考虑了累积危险函数乘积限估计量的非独立性，给出了协方差矩阵的估计；其次在模型检验方面，本文利用非参数回归分析方法，充分利用了数据本身的信息，减少了对回归关系假定的主观因素，因而分析结果更为可靠。

Concerning the disadvantage of the original PSO that is easily trapped in the local optimization and the convergence speed is slow in the evolution later, a particle swarm collaborative optimization algorithm based on velocity angle was proposed. The strategy of inertia weight adjustment was adopted based on cumulative distribution function of Gaussian distribution.

针对PSO存在易陷入局部极值、进化后期收敛速度缓慢的缺点，提出一种基于速度夹角的粒子群协同优化算法，并且引入了一种基于高斯分布的累积分布函数的惯性权重调整策略。

Firstly, variables which were acquired for the above two kinds of classification system were obtained from field and laboratory investigation of the core samples as well as test of supersonic waves in drilling holes. Secondly, distribution functions and parameters of all variables are determined using statistic method. Thirdly, 20000 RMR values or BQ values and cumulative distribution function of these RMR or BQ values have been obtained utilizing Monte—Carlo method and the results are plotted. Finally, risk analysis can be made from above results.

风险评价方法步骤如下：（1）首先通过岩芯样品的现场观测和实验室试验及钻孔岩体超声波测试获得两种分类所需的变量；（2）通过统计分析和判断得出各变量的分布函数及参数；（3）运用Monte—Carlo模拟方法获得2万个RMR值或BQ值及相应的累积分布函数，并将结果绘成岩体质量描述图；（4）运用以上结果作出岩体质量风险分析。

Firstly, with Gaussianizing filter being defined explicitly, a practical method on filtering performance evaluation is given. Secondly, two typical Gaussianizing filters are studied. One is called the U-filter, based on the probability density function and its derivate. The other is called the G-filter, based on the cumulative distribution function and its inverse. After implementation, mechanisms and performances of each filter are contrastively discussed, an example with lake trial is illustrated.

本文给出高斯化滤波的定义和效果评价方法，然后对比研究了基于概率密度函数及导数的U滤波和基于累积分布函数及反函数的G滤波两种高斯化实现方法、原理与性能，并使用一组测试数据刚试了它们各自的高斯化效果。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。