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Description: C语言程序,LC72131+PIC16C63+PT2258 -C source code for Sanyo LC72131 PLL radio using PIC16C63 as MCU for 3 wires bus control and Digital Volume Controller IC PT2258.
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Size: 4974 |
Author: karm |
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Description: DMR数字对讲机协议一致性测试标准
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Size: 206459 |
Author: aglier@126.com |
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Description: Fpga Implementation Of Digital Timing Recovery In Software Radio Receiver
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Size: 346112 |
Author: 谭贤豪 |
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Description: Adobe Audition 是一个专业音频编辑和混合环境。AdobeAudition专为在照相室、广播设备和后期制作设备方面工作的音频和视频专业人员设计，可提供先进的音频混合、编辑、控制和效果处理功能。最多混合128个声道，可编辑单个音频文件，创建回路并可使用45种以上的数字信号处理效果—AdobeAudition是一个完善的多声道录音室，可提
供灵活的工作流程并且使用简便。无论您是要录制音乐、无线电广播，还是为录像配音，AdobeAudition中的恰到好处的工具均可为您提供充足动力，以创造可能的最高质量的丰富、细微音响-Adobe gfdl is a professional audio editing and mixing environment. AdobeAudition specifically for the studio. Broadcasting equipment and post-production equipment for the professional audio and video design, provide advanced audio mixing, Editor, control and functional results. Up to 128-channel mixing, edit individual audio files, loop can be used to create 45 more than the effect of digital signal processing- is a AdobeAudition End good multi-track recording studio, can provide flexible workflow and easy to use. Whether you are to be recorded music, radio, or for video dubbing, AdobeAudition the perfect tool for you may provide sufficient impetus to create the highest possible quality of the rich, subtle sound
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Size: 14857216 |
Author: yange |
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Description: CPU为CSP8051F020，有两个串口和一个SPI口。
一个串口通过数传电台和中控室计算机通信 另一个串口和PLC的MODBUS口通信。
SPI口控制数码管的显示。
已经在工程上应用。-CPU for CSP8051F020, two serial and one SPI mouth. A serial data transfer through the radio and the computer control room of another serial communications and MODBUS PLC Communication. I SPI digital control of the show. In engineering applications.
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Size: 13312 |
Author: LIN |
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Description: 软件无线电中数字调制信号的自动识别，，，信号自动识别的可一-software radio digital modulation signal, the automatic recognition, and automatic signal recognition of a look
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Size: 114688 |
Author: sunny_girl |
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Description: 您可以使用 Microsoft Windows XP Media Center Edition 2005 执行其他 Windows XP 计算机所执行的任何操作，甚至更多操作。可以浏览 Web，玩喜欢的计算机游戏，与朋友互相发送电子邮件和即时消息，以及安装和使用针对 Windows XP 设计的程序。无论您是坐在 Windows 桌面前还是手持遥控器呆在另一间屋子里，Media Center 都会提供功能强大且易于使用的方法使您享受所有数字娱乐活动：照片、音乐、电视、电影、家庭视频、广播和种类繁多的应用程序和服务。Media Center 是高度集成的计算机和家庭娱乐中心。
对此感兴趣的可以和我联系。13616148574
邮箱：crzman@163.com-you can use Microsoft Windows XP Media Center Ed ition 2,005 other Windows XP computer performs any operation, even more operational. Can surf the Web, play like a computer game, with mutual friends to send e-mail and instant messaging. and the installation and use of Windows XP design process. Whether you are sitting Windows desktop before or handheld remote control to stay in another room and Media Center will provide powerful and easy-to-use method allows you to enjoy all the digital entertainment : Photos, music, television, movies, family video, radio and a wide variety of applications and services. Media Center is a highly integrated computer and family entertainment center. Interested can contact me. 13616148574 mail : crzman@163.com
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Size: 69632 |
Author: 刘友根 |
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Description: :数字下变频技术是软件无线电的关键技术之一. 数字下变频技术是将宽带高速数据流信号变成窄带低速
数据流信号,这个过程就是信号的抽取. 实现抽取的关键问题是如何实现抽取前的数字滤波,特别是多级抽取时滤
波器的设计与实现. 对于一个具体信号进行多级抽取时滤波器的设计给出了一个可行的方案-: Digital down-conversion software radio technology is one of the key technologies. Digital down-conversion technology is a broadband high-speed data streams to signal low-speed data stream into a narrow-band signal, this process is the signal extraction. The realization of extraction, the key question is how to achieve pre-extraction digital filtering, especially when Multistage Decimation Filter Design and Implementation. For a specific signal when Multistage Decimation filter design are given a feasible solution
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Size: 204800 |
Author: 赵平 |
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Description: 系统以SPCE061A为核心，检测键盘模块和流量检测模块，根据检测结果按照程序设定的方式去控制红绿灯模块、倒计时数码管模块和放音模块。本系统共有4组双色LED指示灯，分别接交通灯模组的CS0、CS1、CS2、CS3脚，由61板的IOB的0、1、2、3脚供电，20盏灯的亮暗变化分成4种状态，每种状态亮5盏灯，由程序决定亮哪5盏；4个数码管的高位都接CS4脚,由61板的IOB的4脚供电, 低位都接CS5脚, 由61板的IOB的5脚供电，由键盘输入其倒计时间，数码管每秒钟变化一次；由61板内部的DAC控制播音。-SPCE061A as the core system to detect the keyboard module and flow detection module, according to test results in accordance with the procedures set way to control traffic lights module, countdown digital tube module and playback module. The system a total of 4 two-color LED indicator light, respectively, then the traffic light module CS0, CS1, CS2, CS3 feet by 61 of the IOB board feet of 0,1,2,3 electricity, 20 of the bright lights dark Change is divided into four kinds of state, each state-liang five lights, which by the procedures for determining 5-liang four digital tubes are then CS4 feet high, from 61 of the IOB board feet of 4 power supply, low are then CS5 feet, IOB board by 61 of the 5 foot power supply, keyboard input from its countdown, the second change in a digital tube by the 61 board DAC to control the internal radio.
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Size: 4096 |
Author: 陈巍巍 |
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Description: 一个功能强大的数字音乐电台源代码，支持数字音乐网络广播。-A powerful digital music radio source code, support for digital music broadcasting network.
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Size: 827392 |
Author: 刘久人 |
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Description: 广播电视常用音频数字编码技术的全面介绍。-Radio and television commonly used digital audio coding technology, a comprehensive introduction.
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Size: 1030144 |
Author: 郑攀峰 |
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Description:
随着Internet的发展，网站的作用越来越重要，被称之为继广播、报纸、杂志、电视后的第五种媒体——数字媒体，拥有众多优势，所以现在不少企业都有或正在建设自己的网站，她已经是人们了解企业的窗口之一。同时由于互联网业的复苏，带动了如门户网站、论坛系统等的发展。
-With the development of Internet, the website plays an increasingly important role, was called following the radio, newspapers, magazines, television after the fifth media- digital media, has many advantages, so many companies now have or are in the process build their own Web site, she is already the people understand the business, one of the window. At the same time as a result of the Internet industry
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Size: 1181696 |
Author: q |
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Description: CMMB是英文China Mobile Multimedia Broadcasting （中国移动数字多媒体广播）的简称。国家广电总局于06年10月颁布了中国移动多媒体广播行业标准，确定采用我国自主研发的移动电视接收标准STiMi，该标准将从06年11月1日起实施。它是国内自主研发的第一套面向手机、PDA、MP3、MP4、数码相机、笔记本电脑多种移动终端的系统，利用S波段卫星信号实现“天地”一体覆盖、全国漫游，支持25套电视节目和30套广播节目-CMMB English China Mobile Multimedia Broadcasting (China Mobile Digital Multimedia Broadcasting), the short title. State Administration of Radio, in October 2006 on the promulgation of China s mobile multimedia broadcasting industry standards, to determine the use of China s own research and development of mobile TV reception standards STiMi, the standard from November 1, 2006 come into effect. It is the first set of independent research and development-oriented mobile phone, PDA, MP3, MP4, digital cameras, notebook computers and mobile terminals and a variety of systems, using S-band satellite signal achievement of Heaven and Earth one coverage, roaming the country in support of 25 sets of TV programs and 30 radio programs
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Size: 3058688 |
Author: chenxiaohua |
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Description: 数字钟 可实现正常计数校准 还有方电台报时功能 四低一高 闹钟功能-Digital clock can be calibrated to achieve a normal count timekeeping function of the radio side there are four low and one high alarm
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Size: 1273856 |
Author: 张慧玲 |
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Description: 完整的OFDM链路程序并作了较为具体的解析从基本的bpsk,qpsk,qam到实际的ofdm系统，cdma链路，mac层仿真分析.-Orthogonal frequency division multiplexing (OFDM) is becoming the chosen
modulation technique for wireless communications. OFDM can provide large data
rates with sufficient robustness to radio channel impairments. Many research centers
in the world have specialized teams working in the optimization of OFDM for
countless applications. Here, at the Georgia Institute of Technology, one of such
teams is in Dr. M. A. Ingram’s Smart Antenna Research Laboratory (SARL), a part
of the Georgia Center for Advanced Telecommunications Technology (GCATT).
The purpose of this report is to provide Matlab code to simulate the basic processing
involved in the generation and reception of an OFDM signal in a physical
channel and to provide a description of each of the steps involved. For this purpose,
we shall use, as an example, one of the proposed OFDM signals of the Digital
Video Broadcasting (DVB) standard for the European terrestrial digital television
(DTV) service.
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Size: 861184 |
Author: 田静 |
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Description: 数字锁相环(DPLL)技术在数字通信、无线电电子学等众多领域得到了极为广泛的应用。与传统的模拟电路实现的PLL相比，DPLL具有精度高、不受温度和电压影响、环路带宽和中心频率编程可调、易于构建高阶锁相环等优点。-Digital phase-locked loop (DPLL) technology in digital communications, radio electronics, and many other fields has been extremely wide range of applications. With the traditional analog circuit implementation of the PLL in comparison, DPLL with high accuracy, free from the impact of temperature and voltage, loop bandwidth and center frequency adjustable programming, easy to build a high-order phase-locked loop, etc..
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Size: 1024 |
Author: hellen |
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Description: 目前的智能机在硬件上多采用双cpu的架构，一个是基带处理器，主要处理数字信号、语音信号的编码解码以及GSM通信协议，另一个是应用处理器，运行操作系统和各种应用程序。基带处理器、射频和其它外围芯片作为一个模块，成为GSM/GPRS modem，提供AT命令接口。网络的应用已经是一个需求的热点，而目前的GSM模块大多都能支持GPRS功能。应用处理器通过AT命令集与带GPRS功能的无线通讯模块通信，为实现网络的应用提供了一个最底层的支持。
-Intelligent machines in the current hardware on many dual-cpu architecture of a baseband processor are mainly deal with digital signals, voice signals, and GSM codecs communication protocol, and the other is the application processor, operating system and applications running procedures. Baseband processor, radio frequency and other peripheral chips, as a module, as a GSM/GPRS modem, provided by AT command interface. Application of network needs is a hot spot, and most of the current GSM module can support GPRS function. Application processor through the AT command set and functionality with GPRS wireless communication module, in order to achieve the application of the network provides a bottom support.
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Size: 194560 |
Author: eleven |
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Description: 5800C Fm芯片资料和驱动代码
技术特点：
*国内首颗采用CMOS工艺的调频收音机芯片；
*驱动能力强，可直接驱动耳机及放大器；
*功耗低，比国外先进方案还低1mA；
*频率覆盖从76M-108M的各国调频波段；
*高度集成度，所需外围器件数为零；
*强大的LOW-IF数字音频结构；
*强大的数字信号处理技术（DSP）,实现自动频率控制和自动增益控制；
*数字自适应噪声抑制
接受灵敏度高、音质出色、立体声效果优异；
*支持重低音，可调式电台搜寻、柔软静音和混音等功能；
*只需一个32.768K晶振作为参考时钟；
*支持I2C和SPI数字接口，支持I2S音频接口，可以配合所有多媒体处理芯片；
*可调去加重（50／75 us) ；
*模拟和数字音量控制；
*线性模拟输出电压；
*两线和三线控制接口模式；
*封装面积： 4×4mm，24-pin QFN-5800C Fm chip code data and drive
Technical characteristics:
* Domestic first CMOS process using the FM radio chip
* Drive ability, and can directly drive headphones and amplifier
* Low power consumption, advanced program than lower 1mA
* Frequency coverage from 76M-108M FM band of countries
* A high degree of integration, necessary to zero the number of peripheral devices
* LOW-IF powerful digital audio structure
* A powerful digital signal processing technology (DSP), automatic frequency control and AGC
* Digital Adaptive Noise Reduction
Acceptance of high sensitivity, excellent sound quality, excellent stereo sound effects
* To support the heavy bass, adjustable radio search, soft mute and blend functions
* Only one 32.768K crystal as a reference clock
* Support for I2C and SPI digital interface to support I2S audio interface will be in line with all the multimedia processing chip
* Adjustable de-emphasis (50/75 us)
* Analog and digital volu
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Size: 1367040 |
Author: 文社 |
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Description: dsp实现软件无线电数字下变频得主体程序部分-radio dsp software digital down-conversion process was the main part of
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Size: 1024 |
Author: zc |
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Description: 数字控制振荡器（NCO，numerical controlled oscillator）是软件无线电、直接数据频
率合成器（DDS，Direct digital synthesizer）、快速傅立叶变换（FFT，Fast Fourier Transform）
等的重要组成部分，同时也是决定其性能的主要因素之一，随着芯片集成度的提高、在信号
处理、数字通信领域、调制解调、变频调速、制导控制、电力电子等方面得到越来越广泛的
应用。-Digital controlled oscillator (NCO, numerical controlled oscillator) is a software-defined radio, direct data on the frequency synthesizer (DDS, Direct digital synthesizer), Fast Fourier Transform (FFT, Fast Fourier Transform), such as an important component of the decision at the same time the performance of one of the main factors, along with the improvement of the chip integrated in the signal processing, digital communications, modulation and demodulation, frequency conversion speed control, guidance control, such as power electronics get more and more widely.
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Size: 4096 |
Author: 司令 |
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