建立了基于小波变换的运动图像编码系统模型,实现了数据的高效压缩并得到了良好的恢复图像。
A system model of image sequence coding based on wavelet transform is established. Then a high data compression ratio is realized and satisfactorily reconstructed image can be obtained.
为保证闭环控制系统的鲁棒性,设计了基于交流电机的矢量变换模型的多变量解耦控制器。
To ensure the system robustness, a multi-variable decoupling controller was designed based on the vector transform model of AC motor.
应用拉氏变换和Z变换间关系,得到系统的ARMA时间序列模型。
By the relationship of Laplace transform and Z-transform, the ARMA time series model for this system is obtained.
该软件包具有模型变换、系统分析、极点配置控制、最优控制、次优控制、LQG、二次型权矩阵早优和系统仿真等功能。
The package has the functions of modelling, system analysis, pole-placement control, optimal control, suboptimal control, LQG, selecting quadratic weighing matrices and system simulation etc.
这样通过非线性状态变换和非线性状态反馈,将飞行器原来的6阶非线性姿态模型部分精确线性化为二阶线性系统。
Thus by nonlinear state transformation and nonlinear state feedback, the original 6 order nonlinear attitude model of a spacecraft is partially precisely linearized into a 2 order linear system.
该文从系统论的观点出发,将由投影重建图像中的变换看成空间变化的动态系统模型。
Derived from the viewpoint of system theory, transformations of image reconstruction from projections are replaced with the spatial variant dynamic system models in this paper.
应用变换矩阵来建立数学模型,编制了挖掘机工作装置设计的软件系统。
By establishing math model using transformation matrix, a software for excavator attachment design has been created.
建立了弧焊逆变器的器件级数学模型,对功率变换回路的瞬态过程进行了深入系统的仿真研究。
Based on simulating transient process of power conversion circuit thoroughly and systematically, working condition of magnetic core is analyzed in detail at various arc loads.
通过状态和输入反馈变换将系统模型转换为二阶链式标准型,并对标准型给出一种时变光滑指数镇定控制律。
The state and input feedback transformations were constructed explicitly to convert the second-order nonholonomic system to second-order canonical chained form.
建立了基于自抗扰控制器的双级矩阵变换器闭环控制系统模型。
Then, the closed-loop control system model based on the ADRC is established.
文中以透视投影变换为依据,为基于两台经纬仪形成的一种非接触式光学柔性三坐标测量系统提出了一全新的数学模型。
In terms of perspective projection transformation, a novel mathematical model is proposed for a non contacting optical flexible 3d measurement system constructed by the two theodolites.
本文在前人工作的基础上,研究了基于小波变换和高斯混合模型(GMM)的病态嗓音识别系统。
Based on the work of predecessors, the paper has studied on the system of pathological voice recognition based on the wavelet transformation and Gaussian mixes model (GMM).
然后根据冠脉造影系统的透视投影模型得到两幅不同角度的造影图像之间的几何变换关系,以及空间点三维坐标的计算方法。
Then geometrical transformation matrix between views is obtained based on perspective projection model for X-ray angiography system, and 3D coordinate of spatial points are calculated.
首先结合多体系统理论和齐次坐标变换建立目标机床的误差模型;
The first work was to build an error model of target machine tool by combining the multi-body system theory and homogeneous coordinate transform.
针对四轮车式移动机器人的运动学模型,首先利用一个正则坐标变换,将误差系统转换为一个非线性串联系统的形式;
Aimed at the kinematic model of the car-like mobile robot with four wheels, the tracking error system is firstly transformed to a nonlinear serial system through a regular transformation.
由于变换器工作在平均电流控制的APFC系统中,本文建立了BUCBB变换器的大信号动态模型,并将BUCBB变换器中的开关元件用受控源代替。
On account of the average current control chosen in the APFC system, a large signal dynamic BUCBB model is built and all the switching elements replaced by dependent sources.
在此模型中,协议被描述成状态变换系统,通过对系统状态的检测,能够发现协议中存在的泄漏。
By modeling protocol as a system of states ranslation, and examining all possible states, model checking has found some flaws in some well know protocols.
建立了基于变换器励磁的双馈感应电机的变速恒频风力发电功率控制系统的模型。
A variable speed constant frequency wind power generation system of doubly-fed induction generator based on converter excitation was described.
用M带小波变换来拟合状态在各尺度空间的投影关系,建立了满足标准卡尔曼滤波条件的系统模型。
M-band wavelet is used to approximate the projection relationship between the scale Spaces, and system model that satisfies Kalman filter condition is built.
通过引人双恒等变换,推导出系统和辅助系统的自校正预报模型。
By introducing double constant alterations, we establish self-tuning predictive models of system and auxiliary system.
首先介绍了空间参考模型和坐标变换软件系统设计和实现的原则,并给出了软件系统的体系结构和功能模块组成。
This paper first introduces the principles of the design and implementation as well as the architecture and the functional modules of the software system.
利用函数的Z -变换,获得了离散广义系统模型的一般响应公式,由此得到该模型的局部可达性与局部能控性的充分必要条。
By using Z transform of a function, the general response formula for the general model of discrete singular systems is derived.
通过拟合实验数据表明,1:N自适应卡尔曼滤波器与快速傅里叶变换和标准加入法相结合,用于补偿系统的模型误差和进行重叠峰的分辨,效果良好。
The neopoloarographic synthetic data test indicated that 1 :N adaptive Kalman filter can compensate for modelling errors of system and resolve over- lapped response signals.
基于信号变换模型,给出系统中图像处理板的设计和系统构成,并给出了实验结果。
Based on the model, the design of the image processing board in the system and the system constitution are presented. And the experimental results are given.
从超级电容器储能系统的运行机理出发,设计了含双向DC - AC - DC变换器的超级电容器储能系统主电路结构,并建立了其统一模型。
According the operation mechanics of the SCES system, its main circuit containing bi-directional DC-AC-DC converter was designed and its unified model was built.
针对具有输入时滞、且同时具有非匹配不确定项的一类对象模型,采用状态变换法把原系统转化成为一个无时滞系统,并应用滑模控制的方法设计了控制器。
The state transformation is used to convert a system with uncertain and unmatched input time-delay into a delay-free one, with a sliding mode controller designed.
矢量变换后异步电动机数学模型中还存在M轴和T轴间的交叉电势的耦合作用,影响调速系统的控制性能。
In vector control, there are the cross-coupling voltages between the m and t components of the stator current for Induction Motor (IM), it affects the performance of speed control system.
利用机器人运动学中的齐次坐标变换理论和D - H坐标描述方法建立了关节机械臂系统的坐标测量数学模型,并给出了系统测量空间。
Based on the theory of homogeneous transformation and DH method in robot kinematics, the coordinate measuring model of articulated arm system is established, the system measuring space is given.
通过自动化的模型变换来实现系统级综合,利用组件重用来优化设计空间搜索,因此能够提高系统设计的性能和开发效率。
This paper adopts automatic model mapping to realize system-level synthesis and make use of component reuse to optimize the design space.
提出采用模型变换方法,减小系统模型的不确定性,从而减小鲁棒设计的保守性。
Model transformation method are induced to avoid conservative robust design by decreasing the model uncertainties .
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