Performances of approaching and approximate error were given for the new smooth function, as well as the study of convergence and the approximation limit of optimum for the new model. 还给出了新光滑函数的逼近性能和精度分析以及新模型的收敛性证明和最优解的逼近上限。
One of the applications of the third method for demonstrating approximate computation and error estimation about a type of integration in engineering design 《关于一类积分的近似计算及误差确定的第三种论证方法》在工程设计中的应用之一
On condition that the approximate error was in allowable range, the optimization algorithm to fix cycloid parameters was given for the objective of the highest machining efficiency. 在保证逼近误差限制在允许范围内的前提下,以加工效率最高为目标,提出了确定摆线参数的优化算法。
The Stop-loss order Relations and the Approximate Error of Different Risk Model Compensation S_i 保险风险模型的序关系及其误差
Differentiation as an approximate method for error evaluation has an error in method itself. 微分法计算误差是一种近似算法,存在方法上的误差。
A New Method for Approximate Computation and Error Estimate in Definite Integral 关于定积分近似计算及误差估计的一种新方法
The analysis indicates that the reconstructing errors result from approximate treatment and accumulative error. 分析表明,重构误差主要来源于计算中的近似处理和累积误差。
It can reduce the effect of approximate error, and increase fitting accuracy in curve fitting. 使用二次样条曲线作为基元可以尽可能的在特征提取时减少近似误差的影响,曲线拟合时可以提高拟合精度和加快计算速度。
By building the cycloidal polar parameter equation, the approximate error formula was derived. 建立了摆线的极坐标参数方程,推导出逼近误差的计算公式。
The approximate result and error estimate totally identical to those with the generalized numerical integral method of single node can be got by means of Gauss-Jacobi quadrature. Gauss-Jacobi求积方法在应用中可得到与广义单节点数值积分公式完全相同的近似结果及误差估计。
The approach can derive an approximate representation of error rate by the Fourier series. 该方法可利用付立叶级数展开写出误码率的近似表达式。
In this paper, concerning about the characteristics of random excitation spectrum of flying missile head, An approximate method and error estimate solution of dense modes are presented. 本文针对弹头随机激励的谱特点,给出了随机响应的近似解法及其误差估计,并推导了密集模态下随机响应的解析表达式。
A algorithm for adaptive data sampling of freeform surface based on chord approximate error is proposed to optimize the uneven spacing of data points acquisition. 提出了基于垂距逐步递推的自由曲面自适应数据采样的新算法,给出了应用该算法对复杂曲面物体外形重构和建模方法。
Approximate Expression to Error Function 误差函数的近似式
The iterative algorithm of solving nonlinear equation by conic is proposed and an approximate error formula near the solution is given. 给出二次曲线在非线性方程求解中的迭代算法,并给出方程根附近的近似误差公式。
An iterative algorithm was set forth for nonlinear equation by power and exponential function in this paper. The authors gave not only judging condition for initial value but also approximate error formula near solution. 给出幂指函数在非线性方程求解中的一种迭代算法,既给出初始值的判断条件,又给出方程根附近的近似误差公式。
With the method, the variability of the random variables in the work function is treated as error no matter what their distribution and numeral character are, and the reliability is obtained by calculating the approximate value and error limitation of the work function. 该方法将功能函数中各随机变量的变异性作为误差处理,不考虑其分布形式及数字特征,通过计算功能函数的近似值及其误差限求取可靠度。
Approximate development of triangle line and error analysis program system are realized on the basis of approximate developing error theoretical analysis of triangle line of skew curved surface. 在对不可展曲面三角线法近似展开误差理论分析的基础上,实现了三角线法近似展开及误差分析程序系统。
The theory of cycloid approaching involute was researched in depth. The approximate error formula was derived and the extreme point of approximate error can be solved for through specified formula; 对摆线逼近渐开线的理论进行了深入研究,推导出逼近误差的计算公式和逼近误差极值点坐标的计算公式,并用摆线簇来提高逼近精度;
A Generalized predictive control algorithm based on error correction using dynamically compensating neural network is proposed to approximate the modeling error. So it improves the predictive accuracy of GPC based on linear model and buildups systems robustness. 本文采用权值可在线调整的动态补偿神经网络(动态BP网络)对模型预测误差进行拟合,从而显著提高了基于线性模型的非线性广义预测(GPC)的预测精度,增强了算法的鲁棒性。
A curve of sine approximate error in angle measure is devised, a mathematical model of the measurement error is presented. 作出了角度测量中正弦近似误差特性曲线,并提出了该测量误差的数学模型;
An AR model is used to approximate the linear part of the time series; the nonlinear part and the approximate error are regarded as the unknown-input of system. 以实时拟合时间序列的线性AR模型作为时变系统的已知线性部分,将拟合误差作为时变系统的未知输入,实现了对非线性时间序列的一步预测。
Analysis of approximate calculation error in average sound pressure level 平均声压级近似计算误差分析
Discussion on Approximate Formulas of Error Command Probalility for Telecommand System 对遥控系统误指令概率计算近似公式的推敲
Its applicability, approximate formula and error are also discussed. 文中讨论了该方法的适用范围、近似表达式、误差分析等。
Furthermore, iterative substream power regulation arithmetic is proposed to compensate the error of the approximate bit error rate equation and allocate a kind of QAM rate for each data stream finally. 由于近似误码率公式存在误差,进而提出一种迭代算法,对各子流的功率进行微调,为用户的每个子流分配一种正交幅度调制速率,进一步提高频谱效率。
Discuss that the parameterized adaptive regulate law of adaptive fuzzy controller is adjusted by the tracking error and the approximate error together, which causes the convergence rate for tracking error of closed-loop system to speed up and the tracking error satisfies certain H_ ∞ performance index. 3. 探讨了自适应模糊控制器的参数自适应律由跟踪误差与逼近误差共同进行调节,使得闭环系统的跟踪误差的收敛速度加快,并且跟踪误差满足一定的H∞性能指标。
In the case of the number of fuzzy rules is unchanged, by adjusting the contraction-expansion factors on-line, the universe is changed automatically, improving the control accuracy and the approximate error is decreased step by step. It makes the fuzzy rules become well-designed. 在模糊规则数目不变的情况下,通过在线调节伸缩因子,不停的伸缩论域,提高了控制精度,使逼近误差进一步减小,同时降低了规则设计的难度。
Definited a form of approximate error and raised the a method of circumference-maximize and reduce the runtime of the arithmetic. 定义了近似误差的一种形式,并提出了基于这种误差形式的周长最大化方法,减少了算法的执行时间。
However, X-Y table is sensitive to the uncertainties and nonlinear factors that its servo performance decreased, so it is necessary to design servo controllers to improve the robustness and contour precision. Secondly, the traditional Taylor approximate contour error model was established. 但是,系统对扰动等不确定性更为敏感,且受系统非线性因素影响,使其伺服性能大大降低,需要通过设计伺服控制器来提高系统的鲁棒性和轮廓精度。