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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...
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
- 2022-06-20 10:02:01下载
- 积分：1
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DOS下的modem开发
DOS下的modem开发-DOS under the modem development
- 2022-04-17 14:22:47下载
- 积分：1
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在局域网和广域网传输DNP V3.00。
Transporting DNP V3.00 over Local and Wide Area Network.
1 Overview
1.1 Purpose
DNP V3.00 (hereafter referred to simply as DNP) was designed for serial point-to-point communication (e.g. RS-232) with limited support for half duplex serial networks (e.g. RS-485). In order for devices to exchange DNP messages in a local (LAN) and/or wide area network (WAN), one must either augment the protocol to support a network environment or use an existing network transport mechanism. This document takes the latter approach specifically, to define how to transport DNP traffic on the internet protocol suite.
-Transporting DNP V3.00 over Local and Wide Area Network.
1 Overview
1.1 Purpose
DNP V3.00 (hereafter referred to simply as DNP) was designed for serial point-to-point communication (e.g. RS-232) with limited support for half duplex serial networks (e.g. RS-485). In order for devices to exchange DNP messages in a local (LAN) and/or wide area network (WAN), one must either aug
- 2023-06-06 00:50:03下载
- 积分：1
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AVR实现软USB转RS232的全部资料
AVR实现软USB转RS232的全部资料-AVR USB to achieve soft RS232 all the information
- 2022-08-18 01:34:26下载
- 积分：1
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codec, the implemention on the galois extension field.
编码、通信中扩域实现-codec, the implemention on the galois extension field.
- 2022-03-28 18:17:42下载
- 积分：1
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PDA与PC数据交互系统
PDA与PC数据交互系统-PDA and PC data interactive system
- 2022-07-25 10:11:27下载
- 积分：1
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实现MSN自动转发消息的功能，利用了MS提供的MSN com接口，直接调用就可以了，也可以获取所有联系的列表，具体的接口参照MSDN上的说明...
实现MSN自动转发消息的功能，利用了MS提供的MSN com接口，直接调用就可以了，也可以获取所有联系的列表，具体的接口参照MSDN上的说明-achieve MSN automatically forwarded to the news function, use of the MS MSN com interface, called directly, and they can also can get a list of all links, the interface reference to the specific instructions on the MSDN
- 2022-05-15 23:54:26下载
- 积分：1
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误码率计算程序，可以实现简单的误码率计算。对初学者有用...
误码率计算程序，可以实现简单的误码率计算。对初学者有用-bit error rate calculation program, can achieve a simple error rate. Useful for beginners
- 2022-08-26 02:54:32下载
- 积分：1
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三菱FX系列PLC编程口通讯和VB源程序
三菱FX系列PLC编程口通讯和VB源程序,适用于串口通讯,可以使PLC控制更合理，可以自由改动的VB源程序，使用VB6.0编写。
- 2022-04-28 09:06:26下载
- 积分：1
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全套CANopen资料，英文原版，对开发汽车级和工业级的CANopen通讯编程，非常有用。
我们的CAN高层协议就是参照这个资料作出来的。...
全套CANopen资料，英文原版，对开发汽车级和工业级的CANopen通讯编程，非常有用。
我们的CAN高层协议就是参照这个资料作出来的。-complete information, the English original. Development of automobile and industrial-grade Application of CANopen communications programming, very useful. We CAN senior agreement is the light of this information to us.
- 2022-01-25 23:45:57下载
- 积分：1
