模块

SHANGHAI JEELON ELECTRON CO.,LTD is With the Rapid Development Of EXPORT JIAGONG QU JINQIAO PUDONG SHANGHAI.factory automation,various kinds of basic automatic elments are widly adopted.our comany has brought in the advanced international standard technological appliances,including dedicated production lines for sensors from Simens company in Germen,Amenrican silk net printers,English thick film testing instruments and laser reparing and tuning machines,Japanes automatic plunger and so on.

直流电机调速模块、单/三相无级调功调压模块、单/三相集成移相交流调压模块等产品在内的各种工业控制及自动化产品已超过二十年。新一代产品采用了ASIC电路、SMT工艺和数字化技术，并应用了CAD／CAM电脑辅助设计／制造系统，以及按照ISO9001标准建立了全面质量管理保证体系，使产品性能和质量达到九十年代末国际同类产品的先进水平，并在国内处于领先地位。

The article is based on the now-being general radio module, using AT89S52 microcontroller to control the radio, by 1602 for liquid crystal display modules, with TEA5767 the high sensitivity, low voltage and low power consumption of all the advantages of integrated chips for the radio module. the reliability is improved and the feeling of comfort is better through the reasonable design, so the function of radio is more powerful compared with tradition one .

本文在已有的收音机模块的基础上，采用AT89S52微控制器对收音机进行控制，由 1602液晶模块作显示，用TEA5767的高灵敏度，低电压和低功耗的全集成的优点作收音模块芯片，通过合理设计，制作了一款完善的数字调谐收音机，并增加了传统收音机所不具备的功能，使之达到了较为理想的效果。

Sequencers have a major modules of exotic produce modules and int...

主要有时序产生模块，彩条产生模块和接口模块。

How this type of products to be ruggedized?By analysing the ruggedization method of the VME module equipped with PMC card in some airborne computer,we expatiated on the basic idea and the method of the heat ruggedization problem for industrial components and modules used in military equipment system.

通过对某机载计算机中的带PMC背板的 VME 模块的热加固方法进行分析，阐述了工业级芯片及电子模块产品军用化的热加固基本思想和方法，揭示了在对工业级产品进行加固时应注意的问题，从而为有效解决该类模块的热加固问题打下基础。

The paper investigates both block-type pilot linear minimum mean square error algorithm and IEEE802.16 OFDM channel estimation analysis. Simulation results confirm the block-type pilot structure is more suitable for IEEE802.16 system. An optimal pilot setting algorithm, based on space frequency domain, is explored and the pilot chart is presented. The proposed algorithm finds its application in MIMO-OFDM. Simulation results show the algorithm presents a good approximation to the perfect channel state information curve, with about 2dB difference in SNR. The simulation results also demonstrate the algorithm achieves fairly high stability in the environment of fast fading, performance of the proposed algorithm is better that of pilot training channel estimation.3. Taking into account the characteristics of IEEE802.16 OFDM system, OFDM system simulation platform is constructed in Matlab, exploiting simulink as a tool. OFDM modulation and demodulation simulation system are configured on LabVIEW platform. All the system signal processing is simulated, including defining system parameters, designing modulation model, and verifying all the proposed algorithms under different environments, such as white Gaussian noise, multi-path fading, with or without guard interval etc. Bit error performance is evaluated. The research provides valid theoretical basis for practical OFDM system performance evaluation.4. Taking advantage of software radio, the paper designs a hardware platform with both 256-IFFT/FFT and 512-IFFT/FFT OFDM schemes co-existing in one platform. You can predetermine one from the two schemes to carry out almost the same model function with different system performance and parameter setting.5. Referring to IEEE802.16 standard, the paper proposes a design method for generating signals and frames suitable for laboratory investigations implemented in laboratory environment.6. Based on 6701evm digital evaluation card, combined with analogy front-end, the paper designs a DSP software model to deal with baseband signal processing. An overall OFDM scheme, with modulation and demodulation function, is accomplished.

讨论分析了MIMO-OFDM中一种基于空频域的最优导频设置算法，给出了导频图案，通过仿真实验表明，该算法与理想的信道状态信息曲线非常接近，信噪比差距约在2dB左右，并且在快衰落条件下具有较好的稳定性，其性能要优于基于前导训练的信道估计方法。3、根据IEEE802.16OFDM系统特点，论文分别在Matlab中应用Simulink工具构建OFDM系统仿真平台、在LabVIEW平台上实现了OFDM调制解调仿真系统，模拟了整个系统的信号流程，进行了OFDM仿真系统参数的选择和调制模块的仿真设计、论证各算法性能，并根据各种不同的条件：例如高斯噪声、多径衰落、有无保护间隔等，对系统的误码特性进行了评估，为正确评价实际OFDM系统的性能提供了有效的理论依据。4、论文以软件无线电思想作为指导，提出了以256点IFFT／FFT为核心和以512点IFFT／FFT为核心的两种OFDM算法模式并存于同一个硬件平台、且可预选的方案，它们在参数选取和性能指标上有所差异，均实现了相似的模块和功能。5、论文参考IEEE 802.16无线网络标准的参数设置，针对本设计系统的应用环境和系统硬件的性能速率，提出了一种应用于实验室环境的信号结构、帧格式等参数设计。6、论文基于TI公司的6701evm数字评估板卡，结合模拟前端搭建数字中频平台，设计了基带处理的DSP软件模块并进行系统调试，基本实现了一套完整的OFDM调制解调方案。

Firstly, according to the present state and development prospect of the relay protection of power system, this paper mainly analyzes the potential use of the comprehensive apparatus and demonstrates the requirements of the function modules. On the basis of them, the module argumentation of hardware and software is listed.

首先，根据电力系统继电保护的现状和发展前景，论文分析了综合测控装置可能的运行方案，论证了各模块的需求配置，讨论了五大硬件模块和软件的设计方案，此后详细介绍了各模块的硬、软件实现。

When the output voltage is greater than over-voltage setting value,there's no DC output,the module can't be restored automatically and should be powered off and re-up electricity.

当输出电压大于过压设定值后，模块保护，无直流输出，模块不能自动恢复，必须将模块断电后重新上电。

The software design of the object holding manipulator control system is divided into several blocks such as system initialization block, data process block and error station detect and dispose model and so on.

在物料抓取机械手软件的设计上，采用的是模块化结构，分为系统初始化模块、数据处理模块和故障状态检测与处理等几部分。

In addition, software module solution and realization of the gateway is the point in this article. This charpter, according to the software architecture, discribs the realization of three important module—CGI,voice process module and SIP stack module. Then the realization of voice process and SIP stack are discussed in detail.

其中网关软件模块解决方案及其实现是本论文的重点，在该部分根据所设计的软件架构，分别进行了图形用户接口、语音处理模块以及SIP协议栈模块的设计，详细论述了语音编解码和语音传输过程的实现，并对SIP协议栈的选取进行了重点分析和设计，通过开源SIP协议栈的比较，给出本系统的SIP协议的实现方案。

The software is constituted a set to have three structures patterns (the customer level, the logical level and the data level) the distributional spatial data platform software, this software mainly by based on number according to the data searches the module, isomerism space data conformity module, the spatial data browser three big modules constitutions.The paper altogether divides five chapters.

软件由基于元数据的数据查找模块、异构空间数据整合模块、空间数据浏览器模块构成，利用该软件能开发出具有三层结构(分别为客户层、逻辑层和数据层)模式的分布式空间数据集成平台。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。