PID控制器性能好坏的关键在于比例、积分和微分参数的选择。
The performance of PID controller lies in the choice of proportional, integral and different coefficient.
在此参数表示下，模糊数可直接视为二维度量空间r 2中的有界连续曲线，这给分析模糊微分方程带来了便利。
By the parametric representation, fuzzy number means a bounded continuous curve in the two-dimensional metric space R2, so that it is easy to analyze fuzzy differential equations.
该方法无须迭代即可直接从微分方程辨识出模型阶次和参数。
The model's order and parameters are estimated from the differential equation directly without iterations.
参数识别反问题是偏微分方程反问题的一类，也是在自然科学与工程技术的各领域比较常见的问题。
Parameter identification problems belong to the partial differential equations inverse problems. They are also common in the field of natural science and engineering.
给出了某类六阶非对称微分算子在一些合适拓扑下关于复参数的几个线性同构定理。
This paper provides several linear isomorphism theorems for certain nonsymmetric differential operators of sixth order under proper topologies about some complex parameters.
为此，本文作者推导出了能精确描述变截面情况的分布参数张力微分方程。
The tension differential equation with distributed parameters which can accurately describe the tension at varied section was inferred.
考虑用二阶复合型偏微分方程所描述的分布参数系统，研究了它的一个使平方性能指标达到最小值的边界最优控制问题。
Consider the distributed parameter system described by the second order partial differential equation of composed type, we discuss its a boundary optimal control problem with quadratic performance.
考虑了一类关于两个参数的微分积分方程非线性边值问题的奇摄动。
A class of singular perturbation of nonlinear boundary value problem for integral differential equation involving two parameters is considered.
方法采用分布参数法建立微分方程，并进行离散求解。
Using the distribution parameter method, established a differential equation, and made its discrete solutions.
这种阻尼器的性能可通过一组非线性微分方程来描述，物理参数包括位移、电压和力。
The characteristics of MR damper have been described by a set of nonlinear differential equations including three physical parameters such as displacement, voltage and force.
在很多物理和力学的问题中常出现最高阶导数项带有小参数的微分方程。
In many problems of mechanics and physics there frequently appears the differential equation with the derivative term of the highest-order containing small parameters.
本文利用微分迭代法，对油墨转移方程参数赋值。
Ink transfer equation parameters are assigned by differential iteration scheme.
本文通过理论推导，证明在反应动力学常微分方程参数估值中所采用的拟线性化法在本质上仍然属于高斯—牛顿法的范畴。
This paper proves that the quasilinearization method for parameter estimation of ordinary differential equation in chemical reaction kinetics essentially belongs to the region of Gauss-Newton method.
用孤立不变集和孤立块的概念，给出了含一个参数的二阶常微分方程组的非驻定有界解分支点的存在性准则。
Using concepts of invariable set and isolated cube, we obtained existence for bifurcate points of bounded solutions of second order ordinary differential systems including a parameter.
系统PID参数调整按先比例、后积分、再微分的顺序采用凑试法由小到大整定。
The PID parameter was adjusted in the order of proportion, integral and differential, and was decided by trying from small to large.
提出一阶非线性常微分方程新的可积型，且给出其通解的参数形式。
Proposed a new form of non-linear first-order ordinary differential equation, meanwhile, it shows the parameter form of universal solution.
对一类带耗散项非线性波动方程进行了研究，用“参数微分法”，得到其解析近似解。
This paper Studies nonlinear wave equation with dissipation items, reaching an approximate solution in the method of parameter differentiation.
考虑戴维南等值参数在跟踪计算过程中不断变化的实际情况，提出基于全微分的戴维南等值参数跟踪计算方法。
Tracing algorithm for Thevenin equivalent parameters based on complete differential equation was presented in consideration of parameter variation during calculation.
借助控制微分方程的标准基本解答组，获得梁弯曲问题初参数形式的通解。
Using the normal solutions of the governing differential equation, the general solution of a bending beam is obtained.
采用最小参数法求解四元数微分方程，优化了四元数实时更新算法。
When optimizing synchro update of the quaternion, the quaternion differential equation is calculated by using minimum parametric method.
对带色散项非线性控制方程进行了研究，用“参数微分法”，得到其近似解。
This paper studies nonlinear wave equation with dispersion items, reaching an approximate Solution in the method of Parameter differentiation.
针对一类参数不确定的非线性系统，提出了一种微分与积分滑模自适应控制策略。
A derivative and integral sliding mode adaptive control scheme is proposed for a class of nonlinear system with uncertain parameters.
合并不同阶的均匀化非傅立叶热传导方程，消去缩小时间尺度参数，得到四阶微分方程。
By combining various orders of homogenized non-Fourier heat conduction equations, the reduced time dependence is eliminated and the fourth-order differential equations are derived.
由于坐标参数模型的高阶特性，使得在通过对坐标数据微分求速度参数时，产生较大的微分截断误差。
Because of the high step of coordinate model, it will be bring a biggish truncation errors when differential the coordinate data to obtain the velocity parameters.
利用正交多项式序列的正交性及微分算子矩阵，论述了时变非线性分布参数系统参数估计的正交多项式法。
New method of parameter estimation for time varying non linear distributed systems is proposed in term of orthogonality of orthogonal polynomial and differential operation matrix.
通过对相应的多因子变量灰微分方程进行参数辨识，求得各影响因素的权系数。
Competence coefficients of each influential factor are solved through parameters identification of related multi-factor variable grey differential equation.
建立了阶梯式变厚度圆板横向自由振动的微分方程，得出其初参数解。
A differentinal equation of transverse free vibration is established for circular plates with stepped variable thickness, and the initial parameter solution of this equation is obtained.
在工程控制系统中很重要的情形是受控对象是分布参数系统，由网络组成的装置——控制器是由常微分方程描述的集中参数系统。
In an engineering control system it is of great importance that the control object is described by a distributed parameter system while the controller is governed by a lumped parameter system.
通过对定位数据求微分以获得目标的速度参数，是靶场估计目标运动参数的常用方法。
Using position data to obtain velocity parameters of object through differential coefficient is a general method in range.
通过对定位数据求微分以获得目标的速度参数，是靶场估计目标运动参数的常用方法。
Using position data to obtain velocity parameters of object through differential coefficient is a general method in range.
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