查询词典 cascaded

An evaluation indicator system for synthetically evaluating the development of cascaded hydropower station is established.

根据流域实际情况建立了综合评价梯级水电开发的评价指标体系。

A novel approach based on cascaded grouped BP network is proposed to classify handwritten digitals.

本文提出了一种基于级连分组网的手写数字识别的新方法。

The system is cascaded and compensated by cascade compensator for lead.Then SIMULINK is used to simulate and design the structure diagram of the system's graphed function model block.The results show that better dynamic characteristic parameter is obtained.

用超前校正器对该控制系统进行串联校正，然后用SIMULINK实现对该控制系统的全图形化功能模块结构图仿真设计，仿真结果表明，系统能得到更好的动态性能参数。

A new optimal design of interleaves based on cascaded Mach-Zehnder interferometers is also presented. As compared with the two existing methods (digital signal processing methods and Fourier filters), the present method is simple and intuitive.

本论文分析了Mach-Zehnder干涉仪级联形式之间的关系，提出了通带平坦化分叉复用器的新型设计方法，与现有两种方法(应用数字滤波器设计方法以及傅立叶展开法)相比较，本文提出的设计方法直观、简单。

The invention discloses an optical-fiber all-optical code converter, comprising a temperature control circuit as well as optical-fiber Mach-Zed interferometer, heat sink, semiconductor refrigerator, thermosensitive resistor and radiator, where the interferometer is composed of two cascaded 3dB couplers on the heat sink, the relation between length difference delta L of two arms of the interferometer and generated delay time difference delta T is that delta L=c.delta T/n, where c is light velocity in vacuum and n is refractive index of optical fiber; the thermosensitive resistor is used to detect temperature of interferometer, the temperature control circuit is used to compare feedback voltage of the thermosenstive resistor with a given voltage to regulate working current of the semiconductor refrigerator, and the semiconductor refrigerator refrigerates or heat two arms of the interferometer by the heat sink.

本发明公开了一种光纤型全光码型转换器，它包括温控电路和位于密封盒内的光纤型马赫-泽德干涉仪、导热热沉、半导体制冷器、热敏电阻以及散热片；干涉仪由位于导热热沉上的二个3dB耦合器级联而成，两臂的长度差ΔL与产生的延时差ΔT之间的关系为ΔL＝c。ΔT/n，c为真空中光速，n为光纤折射率；热敏电阻用于对干涉仪的温度进行探测，温控电路用于比较热敏电阻反馈的探测电压和设定电压，对半导体制冷器的工作电流进行调节，半导体制冷器通过导热热沉对干涉仪两臂同时进行制冷或加热。

The flow diagram and design steps are shown. An example of 3-cascaded, 5-order, 0.8 nm spacing filter is given out. The de- rived response is consistent with that of the ideal filter.

给出了PSO方案的设计流程及具体步骤，并设计了级联数为3、阶数为5和信道间隔为0.8nm的梳状滤波器，其输出响应与理论滤波器一致。

First state reconstruction techniques are used to transform the DC motor model into a cascaded structure and,then,nonlinear adaptive back-stepping controller is designed which is robust to the parameter uncertainties and load torque disturbance.

首先通过状态重构将直流电机系统模型转化为级联结构，其次考虑参数不确定及转矩干扰设计具有鲁棒性的自适应反向步进控制器。

A radio over fiber system to generate optical millimeter wave with four time frequency of the local oscillator frequency using two-cascaded intensity modulators based on optical carrier suppression scheme was investigated numerically and experimentally.

研究了一种采用两个级联外部调制器基于光载波抑制原理产生四倍频毫米波的光纤无线通信系统。

In addition, for the same power capability, the cascaded converter requires less number of main power components such as main valves and main diodes.In this paper, cascade H-bridge converter with CPS-SPWM technique has been proposed, which is the combination of cascade structure and CPS-SPWM technique.

本文提出了基于CPS-SPWM技术的级联H桥型多电平变流器，它是CPS-SPWM技术与级联H型变流器拓扑结构的结合，同时具备二者的优点，在大功率变流器领域具有很好的应用前景。

Cascade multilevel converter is made up of modules. It can be normally divided into two kinds: one with same modules and the other with different modules. This paper analyzes the relationship among the maximum number of output voltage level, the number of cascaded modules, and the input voltage ratio and THD of output voltage in different kinds of cascade multilevel converter. Then, some guidelines for making up cascade multilevel converter are given.

级联型多电平变换器类似于积木化的结构，本文按模块单元的结构形式，将级联型多电平变换器分为相同单元和不同单元两类，以输出最大电平数为目标，系统地分析模块单元个数与最大输出电平数、输入直流电压与最大输出电平数、以及输出电平数与谐波畸变率之间的关系，从中归纳得到构造级联型多电平变换器的指导原则。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。