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Based on experiments, a temperature model of accelerometer is worked out.

结合系统中惯性仪表的误差补偿,重点研究了加速度计误差模型的辨识问题。

In this paper, we analyzed the error of film thickness and refractive index caused by the optical control system, and also analysed the allowable error.

通过对光学监控系统引起的薄膜厚度和折射率的误差进行分析。提出膜系的允差分析。尽量减小由于监控设备引起的误差。

The influence of laser central wavelength variation, polarizer angle error, wave plate phase retardance and angle errors on the whole system is analyzed.

分析了激光器中心波长变动、偏振片的角度误差和波片的相位延迟及角度误差对整个系统的影响。

We analyze factors that cause the error during the process ofstraightening drill pipes and work out the approximate value of straightening error.

对引起钻杆校直误差的因素进行了分析,并对系统的校直误差进行了估算。

Furthermore, the adaptive compensation term of the optimal approximation error was introduced to minimize the effects of modeling error.

该方案通过监督控制器保证闭环系统所有信号有界,并引入综合误差的自适应补偿项来消除建模误差的影响。

The nonlinear plant is first linearised, the fuzzy basis function vector is then introduced to adaptively learn the upper bound of the system uncertainty vector,and its output is used as the parameters of the compansator in the sense that both the robustness and the asymptotic error convergence can be obtained for the closed loop nonlinear control system.

在该方法中,首先将非线性系统线性化,然后利用模糊基函数向量自适应学习系统不确定向量的上界,模糊基函数向量可作为补偿控制器的一个参数。在控制系统的设计过程中可充分保证非线性控制系统的鲁棒性和跟踪误差的渐进收敛性。

According to Lyapunov stability analysis, it is proved that the proposed method can guarantee both synchronization and position errors converge to zero and the system is asymptotically stable.

基于李亚普诺夫稳定性理论证明了所提出的控制策略能够使同步误差和位置误差均收敛到0,并且只保证了系统的渐近稳定性。

It has been shown that any 3×3 ABCDEF augmented matrix,which describes a misalighed optical system,can be represented by an ordered product of basic matrices of , and types.

Casperson[1] 首先研究了描述轴对称光学系统 2× 2矩阵的分解及系统的合成问题。对于实际光学系统,例如谐振腔,由于安装和调整误差、光学系统工作时外界环境产生的微扰、变形而产生失调。

Finishing calculation of mean value, standard deviation, skewness, kurtosis of Beta distribution.(2) Fitting parameters of many kinds of typical distribution and using residual deviation to evaluate fitting precision.(3) Using Beta distribution as an agreed indication distribution applied to many kinds of practical photoelectric measurement distributions.(4) Deriving theory formula of Bayes point estimation about Beta distribution parameters and mean value and standard deviation on the condition of mean square error loss function and supposed the prior distribution is uniform distribution.(5) Generating MCMC sample from post distribution by the method of Gibbs sample algorithm. Calculating bayes point estimation from sample on the condition of mean square error loss function. Calculating confidence interval by an approximate method to complete interval estimation.

本文的主要工作有:(1)解决了Beta分布参数a和b的精确计算以及均值、标准差、偏度、峰度的计算问题;(2)拟合出10余种典型分布的Beta分布的两个参数,并且采用剩余标准差评价该Beta分布的拟合精度;(3)对多种典型的光学与光电测量系统的测量分布进行了Beta分布统示表示;(4)在假设先验分布为均匀分布前提下,得到参数a和b以及均值μ和标准差σ在均方误差损失函数下的贝叶斯点估计理论计算公式;(5)利用直接抽样的Gibbs抽样算法,从后验分布中产生MCMC样本,从样本直接计算均方误差损失函数下的贝叶斯点估计,并使用一种近似方法计算其置信区间,完成区间估计。

Firstly, a class of affine nonlinear systems are considered. The single-layered neural networks are used to approximate the nonlinear functions of the systems. Stable adaptive control algorithms are presented based on system states feedback and system output feedback respectively. The boundary of the tracking error is guaranteed. Then, by using the technique of input-output linearization, the stable adaptive control method for general nonlinear systems is proposed. Finally, the effectiveness of the proposed adaptive control algorithms are verified through the simulation researches for the control of robot manipulator.

首先考虑一类仿射非线性系统,利用单层神经网络去逼近系统的非线性函数,分别给出了基于系统状态反馈和输出反馈的稳定自适应控制算法,确保系统的跟踪误差有界;然后利用输入输出线性化方法,给出广义非线性系统的自适应控制方法;最后通过在机械手位置跟踪控制中的仿真研究,验证了所提方法的有效性。

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I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

I'm running my simile to an extreme.

我比喻得过头了。