举例计算表明其结果和其他定阶方法相一致。
The results of calculations are in agreement with those obtained by other methods.
最后,我们对偏最小二乘回归中的定阶问题进行讨论。
这种定阶方法把多目标规划理论与事物局部特征结合起来。
This method shows that the theory of multiple objective programming and the local character of some sequences can be combined.
本文提出FTS分析的新方法,并研究它的参数估计和模型定阶。
This paper proposes a new method of the FTS analysis and develops its parameter evaluation and model order estimation.
讨论了一维时间序列开环系统、闭环系统的辨识方法及定阶问题。
The identification method for the one dimension time series, open loop and closed loop system are developed by use of model ARMA.
给出了该模型参数估计的EM算法,并利用BIC准则对模型进行定阶。
The estimation of the parameters can be easily done through EM algorithm and the order model is also easily selected by BIC criterion.
主要探讨在这种方法中利用不同的定阶准则建立相应的AR模型及其对距离测度结果的影响。
This paper USES several criteria to estimate the order of the AR model and the influence for the distance measurement outcomes.
理论分析和实例计算都表明:“残差熵”可以作为一种有效的度量方法用于动态模型的适应性检验和定阶。
The numerical experiment of a fire control accuracy test demonstrates that residual entropy can be used as a measure for dynamic model checking and order determination.
在保证子波精度的前提下尽可能地降低模型阶数,提高运算效率,最终实现高效率高精度的子波模型定阶。
In the premise of ensuring the accuracy of seismic wavelet, reduced the model order as much as possible so as to obtain high-efficiency and high-precision seismic wavelet model order determination.
低通滤波器可选用一定阶数和转折频率的巴特沃斯滤波器,而加速度计输出的转速补偿则须预先对加速度计进行标定。
The centrifugal force caused by rotation of drilling tool will distort the accelerometer outputs, which can only be revised by rotation speed compensation.
而时序模型适用性检验的核心问题是模型阶数确定。本文从F检验出发,以aic为基础,推导出模型定阶f检验临界值。
Based upon AIC rule, the critical value of F-test has been developed, the order of model simply determined by it.
详细阐明了时间序列的基本思想、几种基本时序模型和时序动态特征,讨论分析了如何进行模型识别、模型参数计算和模型的定阶。
The basic idea and some kinds of the common time series models and the development characteristics of time series are explained in detail.
文中用辅助变量法和LILC定阶准则结合来估计电液位置和力偶系统的阶和参数,根据估计参数的渐近正态性确定模型的子阶和时滞。
The instrumental variable method and LILC criterion are used to estimate the order and parameter of electro-hydraulic position and force coupled system.
采用差分方法对序列资料进行平稳化,进行定阶,建立2010年全国孕产妇死亡率数据的序列分析预测模型,并对预测结果进行分析和评价。
Using difference method to smooth the sequence, We determined the order and established the 2010 national maternal mortality ratio forecast model to evaluate the predicting results.
本文正是针对该点,提出了一种二维arma模型的初步定阶方法,同时对AR参数的自相关函数估计方法进行了改进,在此基础上得到了功率谱估计算法。
This paper provides a method for the ar order estimation of two dimension ARMA model, and improves an ar parameters estimation method on the basis of autocorrelation function estimation method.
针对板带轧机液压agc系统在线故障诊断问题,建立了一种基于非线性自回归滑动平均模型NARMA的递归神经网络,通过AIC定阶法确定模型阶次。
For on-line fault diagnosis of hydraulic AGC system on strip rolling mill, a recursive neural network model based on NARMA was established. The model order is determined by AIC method.
本文针对数控车削在线检测的需要,建立了用于状态监测与预报的AR模型,并开发了基于该模型的软件,它能够实现AR模型的自动定阶、AR谱分析、加工状态的实时预报。
In this paper, ar model has been built for on-line NC turning monitoring and the software has been developed which can decide the order of ar model, analyze ar spectrum, predict working condition.
对于子系统的性能指标按一定顺序耦合的稳态大系统,采用两级递阶优化控制算法。
Two stage hierarchical optimization control algorithm is adopted for steady state large sized system with its subsystem performance indices coupling in a certain order.
在一定加热功率下,正弦管能有效抑制系统产生的二阶谐波,提高一阶压力波动幅值并降低加热块温度。
The experiment result showed that sinusoidal tube can effectively inhibit second order harmonic mode, increase first order pressure amplitude and lower down heating block temperature.
普通话声调识别参数除常用的基音轮廓外,基音的一阶差分、能量及能量的一阶差分等也具一定的声调特征。
In a mandarin tone recognition system, the parameter is usually pitch contour. But the tone can also be partly characterized by pitch difference, energy and energy difference.
该文还阐明了对二阶对称张量成立的关于特征方程的重根与重向的一些结论对非对称二阶张量不一定成立。
The paper illustrates the conclusions about the multiple root of characteristic equation and characteristic vector which fit symmetric tensor of rank two may unfit unsymmetric tensor.
隧道通风过程可近似认为是一个一阶时滞系统,系统采用自整定模糊pid对隧道管网的风压进行实时控制。
Tunnel ventilation process is approximately a system of time lag of first order, real time control of wind pressure in tunnel pipe is adopted self-tuning fuzzy PID.
由于供水过程可近似认为是一个一阶时滞系统,系统采用了自整定模糊pid对管网的压力进行实时控制。
The water supply process is approximately a system of time lag of first order, real time control of pressure in pipe is adopted self-tuning fuzzy PID.
该方法设计的系统优于常规“三阶最佳系统”的暂态性能,具有一定的实用价值。
The designed system of this method is superior to the conventional third-order optimum system in the transient performance and possesses practical value.
当使用系统辨识方法建立建筑墙体动态热特性模型时,通常将时间离散模型的阶次通常设为定值。
When using the system identification methods to establish the dynamic thermal model of the building wall, the order of the discrete time model was usually set up to be constant value.
最后介绍了一种分数阶线性定常系统的稳定性判据。
Finally a stability criterion is introduced for linear non time-varying fractional-order systems.
用试验模态分析方法测取的系统前1阶模态参数,由于噪声等多种因素的影响,具有一定误差。
There must be errors for the measuring values of the first 1 order data of a system due to the noise and other factors in the Testing Model Analysis.
针对工业现场普遍存在的高阶对象,提出了一种基于误差驱动参数自整定递阶结构的模糊滑模控制策略。
Presents a new method to deal with higher-order process, called hierarchical fuzzy sliding mode control with error-driven adjustment parameters.
本文所考虑的是二阶非定常系统稳定性的积分不等式判别法。
In this paper we shall discuss the criteria of stability for second-order linear nonautonomous, systems using the integral inequality.
重力坝算例说明,2阶等效应力具有一定的网格稳定性,适合在重力坝工程中比较局部角缘应力。
The case study of a gravity dam shows that the 2-order equivalent stress is somewhat mesh independent, and suitable to be used to evaluate the corner stress of gravity DAMS.
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