传递函数

The closed-characteristic expression is proven to be of a A-class entire function and some related propositions are also given. Based on them a series of nathematic deviations are done, which brings an analytic expression between the controller parameters and the cost funtion as well as the restrictions on the optimization problem. In this way the original proposition is concretized for solving.

从系统的传递函数出发，首先证明系统闭环特征函数为A-类整函数的性质并给出其它有关定理，然后进行一系列数学推导，得出了控制器参数与目标函数间的解析关系式及优化的约束条件，由此产生参数优化的具体命题。

Direct volume rendering of scalar fields uses a transfer function to map the measured data to the colors and opacities.

在体绘制中传递函数将体数据转换成光学参数，因此体绘制的效果直接由传递函数决定。

If the parameters of the system are selected very well, the control indexes can be achieved the prearranging requirements; otherwise, the control effect of the system can not been ensured .

控制回路参数整定的依据是各通道的传递函数，因此，为进行控制系统的分析和设计，需要根据时间特性通过系统辩识的方法求取各通道的传递函数。

The results show that the combination of the customized phase plate from the optimization model and the restoration filter can meet the requirements of system.

结果表明，得到的个性化相位模板和图像复原的结合，能够满足系统的实际需求，系统总的传递函数接近衍射受限系统的传递函数。

With that the random noise is filtered out.The change of the wavelength may lead to the drift of the non-exchange phase drift, so influence the stability of the scale factor, also it is known the temperature is the key factor that affect the wavelength of the light-source.

论文在详细分析各种噪声的基础上围绕提高陀螺稳定性和精度做了以下工作：在深入分析陀螺物理特性的基础上，通过试验确定了陀螺系统的传递函数，通过分析将传递函数离散化并应用于自适应滤波，主要是滤除随机噪声。

At last, the software for upper machine and lower machine is introduced.Chapter 3, on the basis of the experiment on the nano feeding control platform, the mathematic modal of drive parts is established considering that the nano feeding under large feeding force has some open air temperature random disturbance phenomenon which influences the feed precision.

第三章，首先对建立数学模型的分步拟合方法进行了介绍，接着，在实验的基础上，通过拟合的方法得出纳米级热驱动部件输入功率与输出位移的数学传递函数以及外界温度干扰与输出位移的数学传递函数，最后建立了干扰情况下的纳米级热驱动部件数学模型。

The method to setup high frequency transfer function model for instrument transformer in GIS by means of Vector Fitting is presented. According to the practical condition, the order reduction method for the high frequency transfer function model of instrument transformer is proposed.

提出了采用矢量匹配法逼近互感器实测频率响应特性建立其高频传递函数模型的方法，并提出了互感器高频传递函数模型的降阶方法。

The purpose of the research is to make the north-seeking system much more accurate and raise its speed at the same time. This paper analyzes the mechanical and electronic structure of the magnetic north-seeking system, introduces its working principle.

并在研究磁轴承简化物理模型和分析电磁轴承工作原理的基础上，推导了电磁轴承的电磁力计算公式，得出磁轴承的单自由度传递函数，分析了转子低速运行时的特性得出了系统传递函数。

The relationships between welding pool width, wire extension and welding parameters including welding current duty ratio, base current, peak current, welding speed and wire-feeding speed were studied. Through large numbers of welding experiments, aluminum alloy pulsed MIG welding dynamic process were identified by the curve fitting method, and the mathematical models between welding current duty ratio, base current, welding speed, wire-feeding speed and wire extension were obtained, succeeding the model between the above parameters and weld pool width.

介绍了铝合金MIG焊焊接电流占空比、基值电流、峰值电流、焊接速度、送丝速度对熔宽的影响规律，并在其基础上，通过平板堆焊试验研究了这些参数对焊接干伸长的影响规律；在铝合金机器人脉冲MIG焊平板堆焊过程各焊接参数与正面熔宽之间的传递函数的基础上，采用铝合金平板堆焊阶跃试验，利用曲线拟合法辨识了铝合金机器人脉冲MIG焊动态过程传递函数，建立了焊接电流占空比、基值电流、焊接速度、送丝速度与焊接干伸长之间的对象数学模型。

This dissertation mainly includes the following four aspects:(1) Design of oversampled near perfect reconstruction DFT modulated filter banks. Firstly,the property of transfer function and aliasing transfer function are analyzed.

首先，分析了传递函数和混叠传递函数的性质，给出了因果FIR DFT调制滤波器组的系统延迟与线性相位分析和综合原型滤波器阶数的关系。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。