电路

The model is implemented with the circuit simulation tool PSPICE, and can be used to analyse oscillating properties, including the detection mode transient response, stable response and frequency response to angular rate.

利用这个电路模型，可以分析陀螺的振动特性，包括检测振动的瞬态响应和稳态响应，检测振动对输入角速度的频率响应特性，从而可以获得陀螺工作的优化条件；并为传感器与接口电路的整体模拟打下基础。

A method of a voice annunciator system is introduced in this paper. To solve the problems existing in the traditional industry annunciator, with AT89C52 microcontroller as the main control unit, the voice annunciator system is designed by ISD4003-4 which is made of ISD company in America. Furthermore, the hardware circuit design and software programs are discussed in detail.

介绍了一种语音报警系统的设计方法，该语音报警系统针对传统工业报警器中存在的问题，以AT89C52单片机为主控单元，采用了美国ISD公司的ISD4000系列语音芯片ISD4003-4设计了该系统的语音录放电路，对硬件电路的设计及软件的编程作了较为详细的阐述。

Besides, several representative designs of four value counter are presented and its method can be applied to the design of arbitrary value counter.

目前，三值逻辑设计理论已逐渐逐向成熟，这方面已有较多论述[1～4]。而四值逻辑设计，尤其是利用电压型四值逻辑电路实现四值时序逻辑电路设计的论述尚少。

In this architecture,the motion estimation can share the same Process Array with Vector Quantization in order to reduce the chip area.

其中运动估计电路可和矢量量化器共用处理器阵列，从而减少了编码器的电路规模。

But, most of the traditional mushroom structures are restricted to only single EBG frequency design. In this thesis, we propose a novel concept about the interlaced periodic arrayal of the mushroom structure with the suspending microstrip line. By the simulation and measurement result, it is verified that the mushroom structure with the suspending microstrip line can reveal multi-band EBG characteristic.

而传统的蕈状结构的应用，多半只有操作在单一频率的电磁带隙特性，而本论文就针对了蕈状结构结合悬置微带线架构的电磁带隙特性研究，并提出了一种新的穿插周期排列的概念，透过电路模拟与实作量测的验证，我们成功的让蕈状结构结合悬置微带线的架构展现出多频电磁带隙的特性，并且，我们利用了这一个新概念设计了一种新型的微波电路。

It is sure that CMOS process will be replacing the III-V compound process such as gallium arsenide or silicon bipolar process that were dominant in the fields of radio frequency and microwave.

采用CMOS工艺进行射频电路设计的一个好处是，使得模拟射频收发器电路和基带信号处理电路由同种工艺实现，迎合了单片系统集成的发展趋势。

Their flash frequency is fixed so their use is limited and you may prefer to build your own circuit to flash an ordinary LED, for example our Flashing LED project which uses a 555 astable circuit.

他们的闪光频率是固定的，使它们的使用是有限的，你可能更愿意建立自己的电路，以一个普通的LED闪光灯，例如我们闪光的LED 项目，该项目使用了555稳态电路。

This paper analyzed and researched the characteristics of Schmitt trigger, single-stable-state trigger and astable multivibrator constituted by 555 timer based on PSPICE. Against the phenomenon of astable multivibrator constituted by 555 timer has no oscillation in PSPICE, an effective analysis method was brought out for 555 timer circuit to simulate the actual oscillator.

作者在文中应用PSPICE对555定时器构成的施密特触发器、单稳态触发器和多谐振荡器的工作特性进行了仿真分析和研究，针对PSPICE中555定时器构成的多谐振荡器不起振的问题提出了模拟振荡电路的有效起振方法，对电子电路的分析与设计具有一定的参考意义。

By the method in this paper, for deciding the global asymptotic stability of the equilibrium point, it is not necessary to verify whether the equilibrium point is unique and to construct Liyapunov functions.

由于非线性电路的复杂性，目前适合于该问题的方法，主要是LIYAPUNOV直接[13] 。应用LIYAPUNOV直接法分析电路的平衡点全局渐进稳定性，有两个基本的问题难以解决。

Chapter one and chapter two analyse the basis theory and give a whole design plan and expatiate the basic exoterica of system inculding primary technology for application. It involves the basic control theory of satellite antenna and analyse for the whole function. Chapter three gives the hardware design which includes hardware etlectrocircuit structure, principle chart, selecting all kinds of parts of the apparatus , the sensor elements and the design of serial communication electrocircuit etc. Chapter four and chapter five introduce software design for the SCM and the personal computer, giving mainly design theory and material program which includ the design of searching for the satellite and searching for the high-point and the program development by Delphi on PC, explaining the basic principium of asynchronous serial communication for epigyny computer and hypogyny computer.

第一、二两章阐述了系统的理论基础及应用的主要技术，包括卫星天线控制基础理论和整体功能分析等等；第三章是系统硬件设计，包括硬件电路组成及原理图、各类元器件的选取及传感器原理，串行通信电路设计等：第四、五两章是单片机、PC机软件设计，给出了主要部分的设计原理及具体程序，包括监控软件设计、寻优设计、寻星设计，PC端Delphi程序设计开发等，并阐述了PC机和单片机异步串行通信的基本原理，是本课题的重点所在。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。