硬件实现的

Based on the analysis and research of the domestic and overseas EIT algorithms, a practical and fast EIT algorithm with better resolution---Fast Newton's One-Step Error Reconstructor dynamic algorithm is studied and realized in this dissertation. Based on a great deal of experiment researches, the EIT algorithm and performance of hardware-measuring device needed by imaging system are analyzed.

本论文在分析、研究国内外有关电阻抗成像重建算法及其研究状况的基础上，研究实现了一种实用、快速、具有一定分辨率的电阻抗成像算法——快速牛顿一步误差重构动态算法，对成像算法进行了大量的实验研究和数据分析，对成像系统所采用的硬件测量装置的性能进行了研究。

to overcome the drawbacks of csy sensor experiment platform made in hangzhou saite company which are functional singleness and monopoly used,and to improve using ratio of the experiment instrument,the standard voltage signal of the sensor experiment platform outputs to computer by the pci1711 data acquisition card,then computer implements data display and processing,thus realizing automatic checkout with signal.the hardware structure and program design under the visual basic environment are described.it has a friendly interface and can be easily operated.it has been used in experiment teaching successfully,and it has been proved a good performance.

摘 要：为了解决原有杭州赛特公司生产的csy型传感器实验台功能单一、专用性强的缺点，提高实验仪器的使用率，将传感器实验台输出的标准电压信号通过pci1711数据采集卡送入pc机进行数据显示与数据处理，从而实现信号的自动检测。主要介绍数据采集系统的硬件组成及在vb环境下数据采集系统的程序设计。该系统人机界面友好，操作简单方便，已成功应用于实验教学中，效果良好。

Some hardwaretechnology such as GPS, Ethernet and embedded computer and somesoftware technology such as Object Oriented Programming are used in thesystem. The functions of sequence contfol, breaker"s trip and close at theprocess of protection simulating, evellt recorder and wave recorder withhigh resolation and algorithm validation are realized. The whole systemhas the character of reliability and simplicity."

该系统采用了全球定位系统、以太网络、数字信号处理器、嵌入式计算机等硬件技术以及面向对象编程的软件技术，可以实现模拟实验的序列控制、模拟保护的跳合闸控制、高分辨率的事件记录、波形记录及各种算法的实时仿真功能。

It realizes high-speed and selective action without the dependence on the submaster station, and shows more advantages than the centralized protection.

本文研究了几种当前流行的对等式通信方案，并对它们的可行性进行了比较。作者提出了网络式配电网保护的原理和逻辑算法，论证了算法的正确性，分别探讨了当配电网处于辐射状运行方式下和处于多电源并行供电方式下网络式保护的实现方案，并且在现有的硬件平台上进行了网络式保护控制装置的软件设计。

The new control and data collecting system can run on WINDOWS system. The data of tapping toque can be input into EXCEL software system to deal with. This new system realize showing of the data on line so it is useful to monitor the condition of the tapping.

在对"一种振动攻丝在线故障诊断的方法及其装置"进行系统分析的基础上，提出了对其进行改进设计和再开发的工作思路，并优化设计了振动攻丝控制与数据采集系统的硬件电路板；把原有系统的操作平台提高到WINDOWS操作系统；攻丝扭矩数据可以存入文件或直接写EXCEL进行处理；实现了攻丝扭矩数据的在线采集和动态显示。

That is to say, by using the special digital converter or running relevant arithmetic, it converts the radio signal to intermediate frequency signal and completes the base-band signal process that isn"t the veriest SR and is named "software defined radio. This paper introduces the rapid system prototype into the design of software radio system, which has great advantage because rapid system prototype technology can be used to describe the future application.

由于受到硬件性能如A／D、D／A及DSP芯片处理速度的限制，目前的软件无线电系统多采用折中的实现方案，增加专用的数字变频器或者运行数字变频算法，将射频信号变频到中频，然后再进行基带信号处理，这样的软件无线电系统又被称之为"软件定义无线电"，它并不是真正意义上的软件无线电。

Altera Corporation system to the Cyclone FPGA series of digital platform, microprocessor, bus, Digital Frequency Synthesizer, memory and I / O interface hardware concentrated in an FPGA, the use of direct digital frequency synthesis technology and digital modulation waveforms required to achieve the rise, Using FPGA ROM storage of the DDS waveform table, and make full use of on-chip resources, improve the system's accuracy, stability and robustness.

系统以 ALTERA公司的 Cyclone 系列 FPGA 为数字平台，将微处理器、总线、数字频率合成器、存储器和 I/O 接口等硬件设备集中在一片 FPGA 上，利用直接数字频率合成技术、数字调制技术实现所要求波形的产生，用 FPGA 中的 ROM 储存 DDS 所需的波形表，充分利用片上资源，提高了系统的精确度、稳定性和抗干扰性能。

In the course of special switch-? design, the main research includes: administrable fast Ethernet switch-; hardware design, referring to SNMP, self-define the Community Network Management Protocol, the switching chips driver and application program interface realization, management software agent design, Systematic test.

楼道交换机开发过程中涉及的主要工作包括：可管理的快速以太网交换机的硬件设计；参考SNMP自定义本交换机的社区网络管理协议；交换机芯片驱动及应用程序接口的实现；交换机管理软件的AGENT部分的编制；系统调试／测试。

Based on uC/OSII RTOS, every step is achieved such as control module, task PRI assign, real time attempter, double communication disposal and fault diagnosis.

在磁悬浮全数字控制硬件平台上，采用不同的控制软件设计方案：实现前后台的软件设计，给出程序的主要流程；引入C／C++软件框架式编程思想，以uC／OSⅡ嵌入式实时操作系统作为控制软件基础，完成磁悬浮轴承实时控制系统的控制模块的建立、任务的优先级分配以及各种功能的实时调度，双处理通讯和故障诊断等工作。

All of the work is applied to study the hardware structure and software implement cored in DSP system.

论文是围绕机械故障诊断分析仪系统展开，主要涉及机械故障诊断的基本理论、数字信号处理的基本算法，并且对以DSP为核心的系统的硬件的构成、软件的实现进行了深入的阐述。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。