| 1. | Study of reciprocating compressor condition forecasting based on arma model
模型的往复式压缩机状态预测 |
| 2. | The paper applies time series analysis method to set up arma model and arima model
摘要运用时间序列分析方法对时间序列建立arma ， arima模型。 |
| 3. | Based on the rv - arma model , it is discussed that the persistence of conditional variances has a effect on capital asset pricing model ( capm ) from persistence viewpoint
在“已实现”波动自回归移动平均模型基础上，从条件方差持续性的角度，讨论了条件方差的持续性对资产资本定价模型的影响。 |
| 4. | Abstract : in this paper we analyse some predictation approaches of random time series and by using arma model we predict effectually the weighted aggregative indexes of securities market in shanghai and shenzhen
文摘:分析了随机时间序列的统计预测方法，并利用arma模型对深沪市未来短期指数进行了有效预报。 |
| 5. | This paper introduces two time - series models - arma model and arch model , which are adapt to the fluctuation forecast . i utilize the game theory and the chaos theory in the study of exchange rate fluctuation
继之，本文将博弈论、混沌理论等理论引入汇率波动问题研究之中，研究了资本流动和汇率波动的博弈问题和汇率决定之混沌模型。 |
| 6. | The analysis of monetary constitution indicates : the foundation currency is strongly controllable and the currency multiplicator isn ’ t controllable , but it could be well and truly forecasted by the arma model , thus it ’ s strongly predictable
从货币供应量的构成分析:基础货币具有较强的可控性;货币乘数不具有可控性,但货币乘数可以利用arma模型进行较为准确的预测,具有较强的可预测性。 |
| 7. | 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 。 |
| 8. | Then the dynamic weighing system is equivalent to system that is time changeing and non - linearity syetem , dynamic mathmatic model is established by analysis . for the system is the arma model , parameter identification method of adaptive least square based on householder transformation is adopted
然后，将动态称重系统等效为二阶系统，分析得出了系统为时变非线性系统，推导出了其动态数学模型，并且根据系统为arma模型，将问题转化为参数辨识问题。 |
| 9. | In this thesis , the ood method and such technologies as mfc , api , dll , and multi - thread will be talked about . secondly , pca and pls ca n ' t deal with time dependent data , and arma model can be used to solve this problem , but the problem of arma structural modeling must be solved
2 )针对主元分析法、偏最小二乘法这两种降维技术不能处理序列相关的动态数据的问题，可以用arma模型提取出动态数据中的序列独立的扰动信号，但首先必须解决arma的结构建模问题。 |
| 10. | ( 4 ) the thesis converts unrest model ( arima model ) of time series to the rest model ( arma model ) of time series . it sets up models acrossing some procedures , such as model identify , factor estimation , model check , ect , then predict the development short - term warp of road foundation . it predicts the time of the filling soil of the next grade utilizing the growth theory of the strength of the road foundation , assures that the working organization and design go smoothly during the filling work of road foundation and saves time and money
( 4 )从路基实测变形数据出发，将时间序列非平稳性模型( arima模型)转化成时间序列平稳模型( arma模型) ，通过模型识别、参数估计、模型验证等步骤来建立模型，从而进行路基动态变形预测，利用路基变形的控制标准对路基下一级填土的时间进行预测，优化了施工组织设计，节省了时间和资金。 |
