查询词典 variable error

In the standard linear regression model, spatial dependence can be incorporated in two distinct ways: as an additional regressor in the form of a spatially lagged dependent variable , or in the error structure.

然而，两个不同时段对全局统计具有显著影响的观测单元完全不同，反映了新疆区域经济发展过程的局部不平稳性。

The Analysis shows that the bigger the variation coefficient of dependent variable,the bigger the mean square error of regression equation when the multiple correlation coefficient is definite.

分析表明，复相关系数一定时，倚变量的变差系数越大，回归方程的均方误差就越大；回归分析时，应对回归方程的误差进行分析。

The problem of PI controller design for the multi-input and multi-output system is transformed to that of static output feedback controller design via the new state variable. As to the problem of the static output feedback, a new LMI-based sufficient condition of the controller is presented in this thesis. We can gain the multivariable PI controllers just solving one LMI inequality. The numerical example is provided to illustrate the proposed design approach. 3.The H_∞ robust control is able to solve the multivariable problem, also the control problem characteristic of the modeling error, parameters uncertainties and unknown perturbation, Its application research in the power electronics is beginning now. Considering the characteristics of the PWM DC-DC converters, a multivariable PI controllers which is based on H_∞ Performance Index is designed.

通过构造新的状态变量，可以将多输入多输出系统的PI控制器设计问题转化为静态输出反馈控制问题，利用后者的成熟理论来设计控制器；本文在问题转化后采用更为简便的算法，只需通过求解一个LMI不等式，就能求取基于H_∞性能指标的多变量PI控制器参数，实例验证了算法的有效性。3.H_∞鲁棒控制具有处理多变量问题的能力，可解决具有建模误差、参数不确定和干扰未知系统的控制问题；它在电力电子学中的应用研究刚刚开始。

Fuzzy controller base on variable universe is a kind of self-reacting controller,With a proper expandable and shrinkable factor,its universe can be changed according to the change of input error. With fuzzy rules increased greatly, both dynamic performance indices and stable performance indices are improved, compared with common fuzzy logic controller.

变论域模糊控制器是一种高精度的自适应模糊控制器，通过伸缩因子收缩论域，使实际的控制规则大幅度增加，无论在动态性能方面，还是在稳态性能方面，相对于一般模糊控制器均获得了较大的提高。

The symbol length of digital pulse interval modulation is variable, so there are some difficulties to analyze error performances of Turbo coded DPIM.

数字脉冲间隔调制的符号长度变化不固定，因而分析该调制方式在Turbo码编码下的差错性能存在困难。

Secondly by using the real parameter complex variable error model and its parameter adjusting algorithms developed in this paper, some new parameter identification methods that can be used in the variant speed driving condition are proposed.

其次，应用本文得到的实参数复变量正实误差模型条件下的参数调整算法，给出了2种新的变速驱动时感应电动机定转子参数的辨识算法，它们可以在交流传动系统的参数自适应设计问题中得到应用。

Model structure is determined according to the principle of minimizing residual sum of squares, model parameters are estimated by optimum instrumental variable method and prediction error method and validation of the model is performed by examining the whiteness of model residuals.

采用最小二乘法估计制动器ARX模型的参数，以损失函数最小为优化准则，判断了制动器模型的阶次。运用最优辅助变量法和预报误差法，对制动器ARMAX模型的参数进行了估计。

To overcome the long test time and big error in single variable open loop step test method, a novel identification method based on asymptotic theory is presented.

为克服传统单变量开环阶跃测试法测试时间长和误差大的缺点，提出一种基于渐进黑箱理论的多变量辨识方法。

If you comment out the line that does the initialization you will get a compiler error :- Use of unassigned local variable 's2

如果你把那行（初始化所有成员字段的那行）注释掉，你会得到一个编译器错误

A modified PID control law and an uncoupled variable structure control law all based on the error-quaternion are developed.

姿态控制系统研究：首先基于全局非奇异的误差四元数分别设计了改进的PID控制律和解耦变结构控制律。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。