收敛因子

Combined with the characteristic of the signal model in MC-CDMA systems, this semiblind method solves the problem of slow convergence by the initial channel estimation, estimates the scalar ambiguities by inserting some users' pilots and makes the algorithm complexity low by an iterative operation.

该方法结合MC-CDMA系统信号模型的特点，通过初始信道估计来解决收敛速度慢的问题；通过部分用户的导频符号以及预均衡技术来估计模糊因子；通过迭代算法来降低计算复杂度。

This method, which can antomatically and simult aneously adjust learning and momentum factor in training process, results in con vergence speed-up.

在该方法中，网络学习过程通过同时调整学习率和动量修正因子两个参数，使得收敛速度沿着最佳方向进行。

The results show that the cotton assorting scheme obtained by the improved hybrid genetic algorithm is more reasonable and the resulting mixed cotton exhibits better quality.

结果表明：改进的混合遗传算法给出的配棉方案比较合理，混合棉质量指标精度较高；由于增加了局部寻优算子和最速下降因子，算法的寻优能力和收敛速度得到了加强。

In the paper, the BP Neural Network is introduced to pick up the first break. And aiming at the shortcomings of BP neural network, such as the low speed in training, the tendency to local minimum, the limitation of amplitude, the momentum factor method and the self-adjusting learning rate are used to improve the BP algorithm.

将BP神经网络引入到初至波拾取中，并针对经典BP神经网络收敛速度慢、易于陷入局部极小的缺点，利用组合函数法、限幅法、动量因子法及自适应学习率法等进行了改进。

The effect of iner- tia weight factor on performance of PSO is discussed.The results show that the particle swarm optimiza- tion algorithm with nonlinear inertia weight factor is suitable to solve multivariahle optimum design prob- lem...

结果表明，带动态非线性惯性因子的微粒群算法对求解多变量的干燥优化设计问题具有方法简单、所需微粒群规模小、收敛速度快等特点；采用部分废气循环并进行优化设计对干燥系统的节能具有十分重要的意义，对湿空气出口温度和废气循环比进行优化设计，其年总费用比无废气循环的常规设计节省18.2%，比循环比为0.2时的常规设计节省12.6%。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷