fifty years of coding theory, a classical error

wsn_lifetime_simulator program

本文主要阐述了DTMF的原理及如何在MATLAB上产生DTMF信号，主要涉及到电话拨号音合成的基本原理及识别的主要方法，利用 MATLAB 软件以及 FFT 算法实现对电话通信系统中拨号音的合成与识别。并进一步利用 MATLAB 中的图形用户界面 GUI 制作简单直观的模拟界面。 能够利用矩阵不同的基频合成 0 － 9 不同按键的拨号音，并能够对不同的拨号音加以正确的识别，实现由拨号音解析出电话号码的过程，完成对电话拨号音系统的简单的实验仿真。-This paper described the principle and how DTMF in MATLAB to generate DTMF signals, mainly related to the telephone dial tone of the basic principles of synthesis and identification of the main methods, the use of MATLAB software and the FFT algorithm on the telephone communication system dial tone Synthesis and Recognition . And further the use of MATLAB in the production of graphical user interface simple and intuitive GUI interface simulation. Able to take advantage of matrix synthesis of different fundamental frequency 0- 9 different keys of the dial tone and be able to different dial tone to be the correct identification, the dial tone from a telephone number to resolve the process of completion of the telephone dial tone system, a simple experiment simulation

随着市场竞争的日益激烈，各个企业都想尽办法完善对客户的服务，电话客户服务便是企业推出的一项举措，通过电话与客户联系业务，为客户解答问题，但是在客户过多的情况下，难免出现问题，为了避免这种情况的发生，需要对所有的客户电话都录音，通过录音可以更好的了解客户的需求，也可以避免员工在工作中出现差错。-With the increasingly fierce market competition, all companies have tried every means to improve customer service, telephone customer service is the company launched an initiative on the phone with customer contact business, to answer questions for customers, but the customer too much circumstances, the inevitable problems, in order to avoid this from happening, the need for all customers calls are recorded through the recording could be a better understanding of customer needs, but also employees in their work to avoid errors.

我们自己创建各个的头部,系统只是把它们发送出去. 在实例中,由于我们要修改我们的源IP地址, 所以我们使用了setsockopt函数,如果我们只是修改TCP数据,那么IP数据一样也可以由系统来创建的. -To create all our own head, the system only to send them out. In the example, because we have to modify our source IP address, so we use the setsockopt function, if we just amend the TCP data, then the IP can also be from the same data system to create the.

用c实现的列车运行情况记录程序，包括gps，键盘，lcd，gprs-train condition recorder by c language，to realise gps，key，lcd and gprs

以下为一般性带附件资料发贴选项： 【资料成文时间】：2005 【语言】：英文 【页数】：22×２ 【何人（公司）所著】：DirkW¨ubben 【文件格式】：pdf 【文件原名】：Channel Coding I Matlab solutions of the exercises -The following is a general information with an attachment Posted options: 【Data written Time】: 2005 【Language】: English 【Pages】: 22 × 2 【whom (company) book】: DirkW ¨ ubben】 【file formats: pdf Original】 【File: Channel Coding I Matlab solutions of the exercises

说明：多线程 (Multi-Thread) RS232 串行口通讯构件 ，是 COMM32.ZIP 构件的改良版，并且增加 Data Bits、Parity、 Stop Bits 等配置，支持 Read/Write 时序控制 (Timing control)、 ReadIntervalTimeout、 WriteIntervalTimout 等 ，支持 DTR/DSR, RTS/CTS 硬件流程控置及 Xon/Xoff 软件流程控置 ( 2.5 版，附源码 ) -: multithreading (Multi-Thread) RS232 serial port communication component, the component is COMM32.ZIP modified version, and increase Data Bits, Parity, Stop Bits, such as configuration and support Read/Write timing control (Timing control), ReadIntervalTimeout, WriteIntervalTimout, support DTR/DSR, RTS/CTS hardware flow control and home Xon/software flow control setting home (version 2.5, with source)

VC++ 6.0NDIS, NDIS Miniport NIC Drivers

配电组态软件，实现电站的组态和自动化控制-distribution configuration software, to achieve power station configuration and automation

此代码是组态王软件与上海耀华的XK3190D2称重仪表通讯的源代码-This code is Kingview software and Shanghai Yaohua Weighing Instrument of XK3190D2 communications source code