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  • 24位ADC在心电图中的应用笔记

    Abstract: This application note describes the essential workings of an electrocardiogram (ECG). It discussesfactors that disrupt the ECG signals and make reliable, highly-accurate electrical characterization difficult. Theindustry-standard solution for ECG electrical characterization, which uses an analog front-end and ADCcombination, is explained. The article then introduces the MAX11040 simultaneous-sampling, sigma-deltaADC as a compelling, highly integrated solution that eliminates the need for the AFE, and saves both spaceand cost for the application.

    标签: ADC 24位 心电图 中的应用

    上传时间: 2013-12-23

    上传用户:sssl

  • 移动无线终端导航AFE和数据转换器

    Abstract: High-speed and low-speed data converters serve critical functions in modern broadband mobile radios. This application note outlines how todetermine high-speed data converter performance requirements in baseband sampling radio architectures. Also, system partition strategies andadvantages are outlined when considering a high-speed analog front-end (AFE) solution.

    标签: AFE 移动 无线终端 导航

    上传时间: 2013-11-02

    上传用户:jjj0202

  • 基于ZigBee技术的无线智能家用燃气报警系统

    在研究传统家用燃气报警器的基础上,以ZigBee协议为平台,构建mesh网状网络实现网络化的智能语音报警系统。由于传感器本身的温度和实际环境温度的影响,传感器标定后采用软件补偿方法。为了减少系统费用,前端节点采用半功能节点设备,路由器和协调器采用全功能节点设备,构建mesh网络所形成的家庭内部报警系统,通过通用的电话接口连接到外部的公用电话网络,启动语音模块进行报警。实验结果表明,在2.4 GHz频率下传输,有墙等障碍物的情况下,节点的传输距离大约为35 m,能够满足家庭需要,且系统工作稳定,但在功耗方面仍需进一步改善。 Abstract:  On the basis of studying traditional household gas alarm system, this paper proposed the platform for the ZigBee protocol,and constructed mesh network to achieve network-based intelligent voice alarm system. Because of the sensor temperature and the actual environment temperature, this system design used software compensation after calibrating sensor. In order to reduce system cost, semi-functional node devices were used as front-end node, however, full-function devices were used as routers and coordinator,constructed alarm system within the family by building mesh network,connected to the external public telephone network through the common telephone interface, started the voice alarm module. The results indicate that nodes transmit about 35m in the distance in case of walls and other obstacles by 2.4GHz frequency transmission, this is able to meet family needs and work steadily, but still needs further improvement in power consumption.

    标签: ZigBee 无线智能 报警系统

    上传时间: 2013-10-30

    上传用户:swaylong

  • 赛灵思电机控制开发套件简介(英文版)

      The power of programmability gives industrial automation designers a highly efficient, cost-effective alternative to traditional motor control units (MCUs)。 The parallel-processing power, fast computational speeds, and connectivity versatility of Xilinx® FPGAs can accelerate the implementation of advanced motor control algorithms such as Field Oriented Control (FOC)。   Additionally, Xilinx devices lower costs with greater on-chip integration of system components and shorten latencies with high-performance digital signal processing (DSP) that can tackle compute-intensive functions such as PID Controller, Clark/Park transforms, and Space Vector PWM.   The Xilinx Spartan®-6 FPGA Motor Control Development Kit gives designers an ideal starting point for evaluating time-saving, proven, motor-control reference designs. The kit also shortens the process of developing custom control capabilities, with integrated peripheral functions (Ethernet, PowerLink, and PCI® Express), a motor-control FPGA mezzanine card (FMC) with built-in Texas Instruments motor drivers and high-precision Delta-Sigma modulators, and prototyping support for evaluating alternative front-end circuitry.

    标签: 赛灵思 电机控制 开发套件 英文

    上传时间: 2013-10-28

    上传用户:wujijunshi

  • RemoteWAP is a Remote Administration Tool for any Operating System that can support the Java Virtual

    RemoteWAP is a Remote Administration Tool for any Operating System that can support the Java Virtual Machine. It has been designed for anyone who wishes to have complete control of there OS anywhere by using a WAP enabled Mobile Phone. RemoteWAP is developed using Java and WML for the client mobile phone front-end pages. RemoteWAP has a Java Swing-GUI to allow for easy control. Future releases will have a Command Line Interface for quick use

    标签: Administration RemoteWAP Operating Virtual

    上传时间: 2015-02-01

    上传用户:exxxds

  • This manual describes omniidl, the omniORB IDL compiler. It is intended for developers who wish to

    This manual describes omniidl, the omniORB IDL compiler. It is intended for developers who wish to write their own IDL compiler back-ends, or to modify existing ones. It also documents the design of the compiler front-end for those poor souls who have to track the IDL specification.

    标签: developers describes compiler intended

    上传时间: 2015-10-07

    上传用户:84425894

  • Student status management system is development two aspects that typical information management syst

    Student status management system is development two aspects that typical information management system, IMS( MIS), its development includes primarily the background database creates with support and the front end applies the procedure.Creates to rise to the former request the consistency of data is strong with the integrity, the library that the safeness of data like.But request the latter very much to apply the procedure function complete, easy usage etc. characteristics.

    标签: management development information Student

    上传时间: 2015-11-01

    上传用户:1101055045

  • Using the UnderC Tokenizer Class It s often necessary to parse complex text files, where standard

    Using the UnderC Tokenizer Class It s often necessary to parse complex text files, where standard i/o is too clumsy. C programmers fall back on strtok(), but this can be tricky to use properly. Besides, you are still responsible for keeping strtok() fed with new input, and I don t like the schlepp. Tokenizer is a text-parsing input stream, modelled after the (undocumented) VCL TParser class, and based on the UnderC tokenizing preprocessor front-end.

    标签: Tokenizer necessary standard complex

    上传时间: 2013-12-16

    上传用户:whenfly

  • 《JavaServer Faces》 In JavaServer Faces, developers learn how to use the new JavaServer Faces framew

    《JavaServer Faces》 In JavaServer Faces, developers learn how to use the new JavaServer Faces framework to build real-world web applications. The book contains everything you ll need: how to construct the HTML on the front end how to create the user interface components that connect the front end to your business objects how to write a back-end that s JSF-friendly and how to create the deployment descriptors that tie everything together. This book is a complete guide to the crucial new JSF technology.

    标签: JavaServer Faces developers framew

    上传时间: 2016-01-01

    上传用户:redmoons

  • Session 1: common and useful built-in Mathematica functions variable assignment and function definit

    Session 1: common and useful built-in Mathematica functions variable assignment and function definition the Front End and the Kernel Notebooks. Session 2: organisation of data in Mathematica lists and expressions simple programming functions nesting. Session 3: the opportunity to develop your proficiency as a Mathematica user through work on an extended problem Case Studies Mathematica resources on the Internet.

    标签: Mathematica assignment and functions

    上传时间: 2013-12-26

    上传用户:362279997