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模型误差估计
相关语句
  model error estimation
     Tracking of Maneuvering Targets Using Recursive Minimum Model Error Estimation
     基于递推最小模型误差估计的机动目标跟踪
短句来源
     NONLINEAR RECURSIVE MINIMUM MODEL ERROR ESTIMATION
     非线性递推最小模型误差估计
短句来源
     This paper applies recurisve minimum model error estimation ( RMMEE ) to tracking of maneuvering targets and it eliminates the dependence of Kalman filtering-based tracking algorithms upon maneuvering models and the instability of tracking in case of nonlinearity.
     将非线性系统递推最小模型误差估计用于机动目标跟踪 ,有效地解决了基于Kalman滤波的跟踪算法对机动模型的依赖性和非线性跟踪的不稳定性问题。
短句来源
  “模型误差估计”译为未确定词的双语例句
     5. The model errors of wide-band array system were analyzed and a model-error estimationalgorithm was proposed to estimate the various kinds of primary model errors that can degrade theperformance of a wide-band array system.
     5.分析了宽频段阵列系统中影响算法性能的主要模型误差因素,提出了一个宽频段系统模型误差估计算法,可对工作于宽频段的任意结构阵列的多种主要阵列模型误差,包括阵元位置误差、阵元之间的互耦效应、阵元之间以及接收通道之间的幅度和相位特性不一致性等进行估计。
短句来源
     The Minimum Model Error(MME) and its application in nonlinear and uncertain systems are introduced in this paper.
     该文介绍了最小模型误差估计算法(MME)和在非线性不确定系统辨识中的应用,以及分析了基于此算法的系统的鲁棒性的几个方面。
短句来源
     A method for flight test data compatibility check for SAM based on RMMEE is proposed. By means of measuring the missile postition and the angular displacement of missile body, not only can the method make an on line reconstruction of six degree of freedom trajectory,but also estimate the dynamic error of the strapdown INS(SINS). It completely eliminates the constraint of the Klein model.
     提出了基于递推最小模型误差估计 (RMMEE)的地空导弹飞行试验数据相容性检验的方法 ,该方法采用导弹位置和弹体角位移测量 ,不仅能在线重构六自由度弹道参数 ,而且能估计捷联惯导的动态误差 ,从根本上克服了Klein模型的局限性。
短句来源
     A new algorithm of predictive filters for time-invariable nonlinear systems is proposed.
     针对时不变非线性系统,提出一种用神经网络进行模型误差估计的预测滤波算法.
短句来源
     The COD model and constant system errors estimation algorithm were discussed firstly, and then a generalized nonlinear semi-parametric regression COD model was constructed and estimation algorithm of satellites trajectories parameters, system errors parameters and models errors was designed. Finally the conclusion that semi-parametric model estimation precision was superior to classical LS orbit estimation precision was proved from theoretical angle.
     首先讨论了联合定轨模型及常值系统误差估计算法,在此基础上建立了一种广义非线性半参数回归联合定轨模型,设计了相应的卫星轨道参数、系统误差参数及模型误差估计算法,并从理论上证明了半参数模型轨道估计精度优于经典最小二乘轨道估计精度。
短句来源
  相似匹配句对
     Estimation of Semiparametric Errors-In-Variance Model
     半参数方差误差模型估计
短句来源
     Estimation of Varying-coefficient Models with the Correlated Random Errors
     相关误差的变系数模型估计
短句来源
     Estimation of linear models with error in response variable
     误差在反映变量线性模型估计
短句来源
     The M-Estimation of Nonlinear Models under Dependent Errors
     相依误差下非线性模型的M估计
短句来源
     MESINUM MEAN SQUARE ERROR ESTIMATION OF LINEAR REGRESSION MODEL
     线性回归模型的最小均方误差估计
短句来源
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  model error estimation
A theoretical development to include model error estimation into the ensemble data assimilation technique has been carried out.
      
Section 2 develops the Bayesian validation metric, and Section 3 describes the proposed methodology for model error estimation.
      


Common methods of strain analysis are based on the well-distributed strain-fields and small strains, How can the strain parameters of the well-distributed strain-fields and special displacements be estimated, has been studied in the article, when the hypothesis of well-distributed strain-field has been destoried by a few large displacement points.By adding these large displacements, as model errors, to the functional model, the non-well-distributed models can be reduced to well-distributed ones, so the problems...

Common methods of strain analysis are based on the well-distributed strain-fields and small strains, How can the strain parameters of the well-distributed strain-fields and special displacements be estimated, has been studied in the article, when the hypothesis of well-distributed strain-field has been destoried by a few large displacement points.By adding these large displacements, as model errors, to the functional model, the non-well-distributed models can be reduced to well-distributed ones, so the problems can be solved by common methods.The model error theory of estimation and test then should be used.In the article, the hypothesis testing methods of the linear model and the model error for strain models have been drawn,and a method of strain analysis considering model errors has been given.By the calculation for a simulating network with many plans, the best and general suitable as well as unsuitable cases have been given.

通常的应变分析方法是基于均匀场和小应变情况的。如果个别点存在大位移,破裂了均匀性假设时,如何估计均匀应变参数和特殊位移便是本文研究的内容。 本文将这种大位移视为模型误差归入观测模型中,将非均匀模型归化为均匀模型,按通常方法求解。这就需要引入模型误差的估计和检验理论。本文结合应变分析,导出了应变模型的线性假设法和模型误差显著性检验法,给出考虑模型误差的应变分析法,通过模拟网多种方案试算,得出了最佳适用和一般适用范围,以及无法应用的情况。

We present an on-line fault detection, isolation and accommodation (FDIA) method with robustness for sensors of jet engine control system. First, Based on invariance theory and observer eigen-structure assignment technique, a robust sensor FDIA algorithm for jet engine with unknown disturbances (uncertainties ) was given. Then, in order to achieve robust PDIA, the unknown disturbances of the engine system were analyzed, and an estimation algorithm of unknown disturbance distribution matrix was proposed....

We present an on-line fault detection, isolation and accommodation (FDIA) method with robustness for sensors of jet engine control system. First, Based on invariance theory and observer eigen-structure assignment technique, a robust sensor FDIA algorithm for jet engine with unknown disturbances (uncertainties ) was given. Then, in order to achieve robust PDIA, the unknown disturbances of the engine system were analyzed, and an estimation algorithm of unknown disturbance distribution matrix was proposed. Finally, the robust senor PDIA algorithm was applied to some type of jet engine under conditions of acceleration, deceleration and maximal steady state, and the decoupling relation were approved. The results illustrated very well: The practical application of this FDIA scheme was also considered.

在所有鲁棒性故障检验中,都要涉及到对系统模型误差的估计问题,但由于航空 发动机系统的高度复杂性,对这种模型误差的定量估计几乎是不可能的,大部分研 究者都对其作假定,因而大大限制了其方法的工程实用性。本文在分析线性模型与 非线性模型输出的差异时,发现系统扰动分量之间存在一定的比例关系,因而可对 其扰动分布矩阵作出近似的估计。基于此,使扰动解耦成为可能,也提高了鲁棒故障 检测方案的工程实用性。

This paper applies recurisve minimum model error estimation ( RMMEE ) to tracking of maneuvering targets and it eliminates the dependence of Kalman filtering-based tracking algorithms upon maneuvering models and the instability of tracking in case of nonlinearity. Simulation shows that RMMEE can be adaptive to varieties of maneuver with high tracking accuracy and quick response, and that it is valuable in engineering applications.

将非线性系统递推最小模型误差估计用于机动目标跟踪 ,有效地解决了基于Kalman滤波的跟踪算法对机动模型的依赖性和非线性跟踪的不稳定性问题。仿真结果表明 ,该估计方法能适应不同的机动方式、精度高、跟踪快速 ,具有重要的工程应用价值

 
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