Search - principle of dtmf

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[Other resource] verslagDTFM1 DL : 1: DTMF的PDF说明文件，从原理到应用方法进行了详尽的叙述，使人理解双音多频的概念和使用方法-DTMF PDF Document from the application of the principle carried out a detailed narrative that people understand DTMF the concept and use
Update : 2008-10-13 Size : 111.35kb Publisher : zz
[Communication] DTMFinvoice DL : 1: 很好的关于DTMF检测原理介绍，对DTMF在语音环境下的优化检测做了详细的解释和分析-good on DTMF detection principle, the Voice of DTMF in the context of the optimal inspection done a detailed explanation and analysis
Update : 2008-10-13 Size : 282.04kb Publisher : 黄海涛
[Other resource] DTMF原理 DL : 1: 本文章说明一个可以快速识别和产生DTMF的DSP算法原理！里面详细说明了DTMF的原理和算法公式-a note of this article can quickly identify and generate DTMF DSP algorithm principle! Inside a detailed description of the DTMF principle and algorithm formula
Update : 2008-10-13 Size : 81.48kb Publisher : vv
[Other] DTMF原理 DL : 0: 本文章说明一个可以快速识别和产生DTMF的DSP算法原理！里面详细说明了DTMF的原理和算法公式-a note of this article can quickly identify and generate DTMF DSP algorithm principle! Inside a detailed description of the DTMF principle and algorithm formula
Update : 2025-02-17 Size : 81kb Publisher : vv
[DSP program] verslagDTFM1 DL : 0: DTMF的PDF说明文件，从原理到应用方法进行了详尽的叙述，使人理解双音多频的概念和使用方法-DTMF PDF Document from the application of the principle carried out a detailed narrative that people understand DTMF the concept and use
Update : 2025-02-17 Size : 111kb Publisher : zz
[Communication] telephone DL : 1: 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.
Update : 2025-02-17 Size : 4kb Publisher : 冯扬
[Communication] dtmf DL : 0: 这是一本关于电话通信方面的原理介绍书,主要从描述了电话,声音上的一些物理特性.-This is about a principle of the telephone communications book introduction, mainly from the description of the telephone, the voice on some physical properties.
Update : 2025-02-17 Size : 122kb Publisher : 张松宝
[Other] datatransmission DL : 0: 单片机无线数据传输接口C程序设计介绍一种抗干扰能力强的单片机无线数据传输接口的工作原理与软件设计。主控芯片采用AT89C51单片机,信方式采用抗干扰能力强、可靠性高的DTMF信号和单工调频的无线通信方式。十六DTMF信号码作为信息帧的十种位码,以及采用校验码进行检错和纠错,数据传输误码率几乎降到为零,极大地提高了无线数据传输质量。软件采C51模块化设计,可方便地进行移植以实现各种数据的区域无线传输。本接口可应用于实验室大型仪器设备的无线通自动登记和管理系统,也可应用于无线通信动抄表系统等。 -Single-chip wireless data transmission interface C Programming A strong anti-interference ability of the single-chip wireless data transmission interface and software design principle. AT89C51 single-chip microcomputer control chip, the letter means the use of anti-interference ability, high reliability and the DTMF signal and FM simplex radio communication. Letter No. 16 as the DTMF information of the ten-bit code frame, as well as the use of checksum error code and error correction, so that data transmission error rate dropped to almost zero, has greatly improved the quality of wireless data transmission. C51 mining modular software design, can be easily transplanted to the region to achieve a variety of wireless data transmission. The interface can be applied to large-scale laboratory equipment wireless Automatic registration and management system, also can be applied to wireless communications, such as automatic meter reading system.
Update : 2025-02-17 Size : 47kb Publisher : 王成
[matlab] shiyan2 DL : 0: 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-This paper describes the principle of DTMF and how MATLAB to generate DTMF signals, mainly related to the telephone dial tone and identification of the basic principles of synthesis of the main method, using MATLAB software, and the FFT algorithm to the telephone communication system, the synthesis and identification of dial tone . And further the use of MATLAB' s graphical user interface simple and intuitive GUI make the analog interface. Able to use a different fundamental frequency matrix synthesis of 0- 9 different button dial tone and can be different correct identification of dial tone to achieve by the dial tone of the process of parsing a telephone number to complete the telephone dial tone system, a simple experiment simulation.-This paper described the principle and how DTMF in MATLAB to generate DTMF
Update : 2025-02-17 Size : 1kb Publisher : 余
[Documents] DTMF DL : 0: 可以了解这块芯片工作原理学会怎么使用芯片 -The chip can understand the principle of learning how to use the chip
Update : 2025-02-17 Size : 774kb Publisher : 周朝庄
[Other] DTMFYuanLi DL : 0: 关于DTMF的原理的详细解释，值得下载学习，对于要学习多媒体编程的朋友有很好的效果。-The principle of DTMF detailed explanation, it is worth downloading to learn, to learn multimedia programming for a friend with very good results.
Update : 2025-02-17 Size : 81kb Publisher : 杨金
[SCM] danpianji DL : 0: 设计了一个模拟智能家居系统，该系统以STC单片机作为控制核心，利用双音多频信号作为远距离的通信信号，利用串口进行模块内部的通信。文章详细介绍了系统的组成、工作原理及其软硬件设计。- The paper designs a system which simulates the intelligent home system. The system takes STC MCU as the control core, uses the DTMF signals as the long-distance communication signals, and serial communication as the communication method between the internal modules. This paper introduces the composition, working principle and the design of hardware and software.
Update : 2025-02-17 Size : 360kb Publisher : 首先
[SCM] DTMF DL : 0: 根据数字正弦波振荡器原理，产生高频信号采样序列和低频信号采样序列，相加合成DTMF，并发送-According to the principle of digital sine wave oscillator, a high-frequency signal sampling sequence and low-frequency signal sample sequence, the sum of the synthesis of the DTMF and sends
Update : 2025-02-17 Size : 4kb Publisher : 张明
[matlab] Matlab-realize-dialing-and-accept DL : 0: 研究DTMF信号的产生以及基于Goertzel算法的接收原理，并使用MATLAB编程实现DTMF拨号系统的信号发生及接收。-The study of the production of DTMF signal and receiving based on Goertzel algorithm principle, and USES MATLAB programming to realize the DTMF dialing and receiving signal of the system.
Update : 2025-02-17 Size : 38kb Publisher : 段绍丽
[Windows Develop] QIGQ998 DL : 0: DTMF信号产生的基本原理,提出使用SPCE061芯片的DA端口和使用IO端口-The basic principle of DTMF signal, DA SPCE061 chip to use port and use IO port
Update : 2025-02-17 Size : 10kb Publisher : gexergqe