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- In this paper, we discuss the existence of high order moment for a stable nonlinear autoregressive series, which satisfies nonlinear autoregressive model with conditional heteroskedasticity. 本文研究平稳非线性自回归序列的高阶矩的存在性问题,此序列满足带条件异方差的非线性自回归模型。
- nonlinear autoregressive model 非线性自回归模型
- This paper presents a nonlinear autoregressive exogenous (NARX)model to approximate dynamics of crankshaft speed with the mass of the idle feeding fuel and the spark advance. 本文采用一类非线性自回归模型(NARX),描述怠速过程中怠速供油量、点火提前角与曲轴转速之间的关系。
- The results validate more validity of nonlinear error correction model on the wavelet neural network than linear vector autoregressive model, and forecast validly the nonlinear economy system. 研究证明,小波神经网络所建立的非线性误差校正模型有较好的预测效果,能够有效地预测非线性经济系统。
- The autoregressive model is applied to the monthly runoff probability forecast. 把自回归模型用于月径流过程概率预报中。
- Objective:To explore an autoregressive model of forecasting the cucumber downy mildew disease morbidity(CDMDM). 目的:探索黄瓜霜霉病发病趋势自回归模型。
- Abstract: Discuss the problem that the discrete cocoon filament size produced by stair autoregressive model sesolve into continuous changeable cocoon filament size curve. 文摘:本文讨论将茧丝纤度曲线阶梯式自回归模型生成的离散茧丝纤度序列还原成连续变化的茧丝纤度曲线问题。
- Discuss the problem that the discrete cocoon filament size produced by stair autoregressive model sesolve into continuous changeable cocoon filament size curve. 本文讨论将茧丝纤度曲线阶梯式自回归模型生成的离散茧丝纤度序列还原成连续变化的茧丝纤度曲线问题。
- In this paper, the Multivariate Autoregressive Model( MARM) in time series is applied to set up the movement state of naval vessel . 可从时域的角度,采用时间序列中多维自回归模型实现对舰船运动姿态的辨识。
- The autoregressive model which is the mathematics model established by time and vibration amplitude and used to regressing and predicting. 摘要在旋转机械中,自回归模型利用时间与振动量的变化建立数学模型并进行回归及预测。
- The study then use Vector Autoregressive Model(VAR), Cointegration and vector error correction model(VECM) to examine the relationship among variables. 因此,本研究旨在探讨影响通货流通馀额变动的主要因素,以利对货币变动行为的背后逻辑有所掌握。
- hybrid nonlinear autoregressive neural network 混合神经网络
- EEG was fitted to a parametric non-gaussian autoregressive model, and then bispectrum is calculated by third-order recursion. 文中利用参数化的非高斯自回归(Autoregressive, AR)模型方法对脑电建模,通过三阶递归法估计模型参数,进而求得双谱。
- Based on Arps decline curve equation this paper presents the autoregressive model for analyzing the production exponential decline curve, the analysis is convenient and reliable. 本文基于Arps递减曲线方程,提出了油气田产量指数递减曲线分析的自 回归模型。
- In this paper the order choosing of autoregressive model is also discussed. A new criterion based on AIC is put forward, in which the influence of signal noise is considered. 本文还探讨了自回归模型的定阶问题,在AIC准则的基础上提出一种考虑信号噪声影响的定阶准则。
- A study was conducted on the spatial correlation of the forests in Heilongjiang Province by spatial autocorrelation analysis and spatial autoregressive model. 摘要运用空间自相关和自回归模型对黑龙江省森林空间分布的聚集性和相关性进行研究。
- Aiming at these problems, a new fault diagnosis method based on TVAR (time-varying autoregressive model) and SVM (support vectors machine) is presented. 针对这些问题,提出一种基于时变参数自回归模型和支持向量机相结合的旋转机械故障诊断方法。
- Existence of Moment for the Nonlinear Autoregressive Series 非线性自回归序列的矩的存在性
- SHI H L,JIANG L F,SUN H.Speech enhancement technique based on time-varying autoregressive model[J].Engineering Journal of Wuhan University,2004,37(2):49-52. [9]石鸿凌;姜琳峰;孙洪.;基于TVAR模型的语音增强技术[J]
- Due to the autoregressive methods utilized the mathematics model to fitting the variable, the autoregressive coefficients of autoregressive model is used to fault diagnosis. 由于,自回归方法是利用数学模型对变数拟合,因此,自回归模型求解出的回归系数可作为故障诊断之依据。