autoregressive造句

• The threshold of autoregressive orders is obtained to identify the flow regimes of bubbling bed and turbulent bed . the accuracies of identification of bubbling bed and turbulent bed are 94 . 3 % and 80 . 0 % respectively . the arma models of the signals acquired from experiments are constructed
  在此基础上，利用模型阶数进行流型的判别，初步实验结果表明，所采用流型辨识方法是有效的，气固流化床中鼓泡床和湍动床的辨识成功率分别为94 . 3和80 . 0 。
• This paper studies the problem , of testing and estimation of change - point in autoregressive conditional heteroscadastic ( arch ) models and general autoregressive conditional heteroscadastic ( garch ) models and obtains several results as follows : in chapter 2 , we consider the change point test problem for garch models
  本文研究arch ( autoregressiveconditionalheteroscadastic )模型和garch ( generalautoregressiveconditionalheteroscadastic )模型的变点检验和估计问题。在已有文献的研究成果基础上，本文进行了以下几方面的研究，得到了如下结果： 1
• This system adopts cumulatively autoregressive moving average model [ arima ] of time series method and modified model gm ( 1 , 1 ) of grey system , makes a local load forecasting modeling through the integration of the above two models and also preprocesses the daily load during the sudden change of climate , thus greatly improving the forecast accuracy . the practical operation indicates that the model is reasonable and easy to operate with complete function
  本系统在经过反复试算后，在算法上采用了时间序列法的累积式自回归动平均模型( arima )与灰色系统中的gm ( 1 ， 1 )改进模型，并将两种模型组合用于该地区负荷预报建模，另外还对气候急变日负荷进行了预处理，大大提高了预报准确度。
• Because of the effects of the timing of payments and interest on the surplus process , j . cai ( 2002 ) considers the two factors , then discusses the problems of the ruin probability under the two generalized discrete time risk models respectively when the rates of interest are independent and identically distributed random variables and have a dependent autoregressive structure
  由于保费收入的时间和利息率对盈余过程的影响， j . cai ( 2002 )将这两种因素考虑在内，讨论了利息率分别具有独立同分布和一阶自回归结构时，在两种广义离散时间风险模型下的破产概率的一些问题。本文则在这两种广义风险模型下，当利息率{ r _ n ， n = 1 ， 2 … )为i
• Based on the least - mean - square algorithm but there is a deficiency in the determination of wavelet threshold of the different resolution , generally speaking , the wavelet soft threshold is determined by noise statistics characteristic , which is drawn by autoregressive modern spectrum estimates in the presence of noise
  小波分析中一个重要问题是阈值的选择。目前大部分的研究是，应用现代谱估计的自回归算法得到各个分辨率下的小波软阈值，未考虑噪声环境的影响。
• Based on the classical least squares method ( rls ) in system identification , the several new identification algorithms of parameter estimation for the autoregressive moving average ( arma ) model , are presented . they include univariable and multivariable two - stage recursive least squares - recursive extended least squares ( rls - rels ) and two - stage recursive least squares - pseudo - inverse ( rls - pi ) algorithms
  本文在系统辨识经典的最小二乘法( rls )的基础上，提出了自回归滑动平均( arma )模型参数估计的一些新的辨识算法，它包括单变量和多变量两段递推最小二乘?递推增广最小二乘( rls ? rels )算法和两段递推最小二乘?伪逆( rls ? pi )算法等。
• This article is to develop autoregressive ( ar ) model spectrum estimation based on the theory of digital signal processing to analyze , process flow signal , to get the frequency of flow signal and then convert it to flow value . at last , the flow value is compared with the result that is gained by using count method
  本文的主要目的是以数字信号处理的理论为基础，采用自回归( autoregressive ，缩写为ar )模型谱估计的方法对涡街流量计的输出信号进行分析和处理，得出流量信号的频率，再换算成流量值，并将其与计数测量方法得出的结果进行了对比。
• So , the real exchange rate of rmb is chosen as the objective of this study . firstly , the international exchange rate theories are reviewed , on the basis of which one - variable autoregressive models of time series are put forward . then , according to analyzing real exchange rate theories and the properties of rmb ' s real exchange rate , a linear autoregressive model and two nonlinear regime switch models are selected as tools for this research
  首先，本文对汇率的理论研究进行了回顾，提出了使用时间序列的一元自回归模型，然后，在对实际汇率的理论研究，以及人民币实际汇率本身所具有的特点进行分析的基础上，选择使用线性自回归模型和非线性的制度转换模型中的自我激励阈值自回归模型和平滑过渡自回归模型来描述实际汇率的动态行为特征。