Description: Multicarrier
(MC) systems have been proposed, standardized and/or implemented for various
applications, such as highspeed
data transmission over twistedpair
cables [1] and broadcasting
of digital audio and digital TV [2]. snuosano Platform: |
Size: 26624 |
Author:mahi uma |
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Description: Multicarrier
(MC) systems have been proposed, standardized and/or implemented for various
applications, such as highspeed
data transmission over twistedpair
cables [1] and broadcasting
of digital audio and digital TV [2]. jbujk-Multicarrier
(MC) systems have been proposed, standardized and/or implemented for various
applications, such as highspeed
data transmission over twistedpair
cables [1] and broadcasting
of digital audio and digital TV [2]. jbujk Platform: |
Size: 25600 |
Author:mahi uma |
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Description: 文中基于3G无线网络，在研究了计算机网络技术、多媒体技术以及通信技术的基础上，提出了一种完善和实用的移动数字视频监控系统。论文分析了无线流媒体技术、嵌入式技术、数据压缩、音视频数据的网络传输等相关技术的基本原理，介绍了实时传输协议RTP，提出了该视频监控系统的软硬件总体框架结构。-Paper, based on 3G wireless networks, in the study of computer network technology, multimedia technology and communication technology is proposed based on a complete and practical mobile digital video surveillance systems. Paper analyzes the wireless streaming media technology, embedded technology, data compression, audio and video data transmission network of the basic principles of related technologies to introduce a real-time transport protocol RTP, raised the overall video surveillance system, hardware and software framework. Platform: |
Size: 859136 |
Author:yalaizhao |
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Description: 红外解码显示程序能够实现对红外线传过来的数据进行解码，然后在数码管上显示。-IR decoder display program can be achieved on the infrared data transmission over decoding, and then in the digital tube display. Platform: |
Size: 2048 |
Author:奚攀 |
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Description: 数字基带信号的传输是数字通信系统的重要组成部分。在数字通信中，有些场合可不经过载波调制和解调过程，而对基带信号进行直接传输。采用AMI码的信号交替反转，有可能出现四连零现象，这不利于接收端的定时信号提取。而HDB3码因其无直流成份、低频成份少和连0个数最多不超过三个等特点，而对定时信号的恢复十分有利，并已成为CCITT协会推荐使用的基带传输码型之一。为此，本文利用VHDL语言对数据传输系统中的HDB3编码器进行了设计。
基于达到达到达到的信号发生器的源程序-Digital baseband signal transmission is a digital communications system, an important component. In digital communication, there are some occasions, may from time through the carrier modulation and demodulation process, the base-band signal for direct transmission. AMI code signal using alternating inversion, there may be four to zero with the phenomenon, which is not conducive to the receiving end of the timing signal extraction. The HDB3 code because of its non-DC components, low-frequency components, and even a small number of 0 up to more than three characteristics, while the timing signal recovery is very favorable, and has become CCITT Association recommended one of baseband transmission pattern. In this paper the use of VHDL language for data transmission system in the HDB3 encoder has been designed. Based on the signal generator to achieve to reach to reach the source Platform: |
Size: 3072 |
Author:成风 |
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Description: LPF Rectangular PAM Communication System.
Pulse-amplitude modulation is widely used in baseband transmission of digital data, with non-baseband applications having been largely superseded by pulse-code modulation, and, more recently, by pulse-position modulation Platform: |
Size: 8192 |
Author:Griffin Wright |
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Description: 信道编码非常有用的一本书，可以供通信方面的参考一下- A reorganized and comprehensive major revision of a classic book, this edition provides a bridge between introductory digital communications and more advanced treatment of information theory. Completely updated to cover the latest developments, it presents state-of-the-art error control techniques. Coverage of the fundamentals of coding and the applications of codes to the design of real error control systems. Contains the most recent developments of coded modulation, trellises for codes, soft-decision decoding algorithms, turbo coding for reliable data transmission and other areas. There are two new chapters on Reed-Solomon codes & concatenated coding schemes. Also contains hundreds of new and revised examples and more than 200 illustrations of code structures, encoding and decoding circuits and error performance of many important codes and error control coding systems. Appropriate for those with minimum mathematical background as a comprehensive reference for coding theory. Platform: |
Size: 21752832 |
Author:vidivici |
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Description: 利用CUDA实现了遥感数字影像处理基本算法中的拉普拉斯算子，并分别实现了采用Globalmemory、Sharedmemory，Texturememory进行数据传输，还同CPU中的串行代码进行了时间比较和误差分析。为了方便在服务器环境下测试运行，我们去掉了在Windows环境下对第三方库遥感影像库GDAL的依赖，而将遥感影像数据转成了二进制图像格式，对于输出影像也以同样的二进制格式存储。图像效果图通过专业遥感软件PCI或通用图像处理软件PhotoshopCS4打开。最后我们对计算结果进行了误差分析和加速比分析。-CUDA enables the use of remote sensing digital image processing the basic algorithm in the Laplace operator, and were achieved using Globalmemory, Sharedmemory, Texturememory data transmission, but also with the serial code CPU time comparison and error analysis. In order to facilitate the test run in the server environment, we have removed in the Windows environment for third-party remote-sensing image library GDAL library dependencies, but will switch to remote sensing image data into a binary image format, for the output images are also stored in the same binary format . Image Effect Picture through professional remote-sensing software, PCI or universal image processing software PhotoshopCS4 open. Finally, we calculated the results of the error analysis and speedup analysis. Platform: |
Size: 3072 |
Author:秦论剑 |
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Description: 利用CUDA实现了遥感数字影像处理基本算法植被指数，并分别实现了采用Globalmemory、Sharedmemory，Texturememory进行数据传输，还同CPU中的串行代码进行了时间比较和误差分析。为了方便在服务器环境下测试运行，我们去掉了在Windows环境下对第三方库遥感影像库GDAL的依赖，而将遥感影像数据转成了二进制图像格式，对于输出影像也以同样的二进制格式存储。图像效果图通过专业遥感软件PCI或通用图像处理软件PhotoshopCS4打开。最后我们对计算结果进行了误差分析和加速比分析。-CUDA enables the use of remote sensing digital image processing of basic algorithms vegetation index, and were realized using Globalmemory, Sharedmemory, Texturememory data transmission, but also with the serial code CPU time comparison and error analysis. In order to facilitate the test run in the server environment, we have removed in the Windows environment for third-party remote-sensing image library GDAL library dependencies, but will switch to remote sensing image data into a binary image format, for the output images are also stored in the same binary format . Image Effect Picture through professional remote-sensing software, PCI or universal image processing software PhotoshopCS4 open. Finally, we calculated the results of the error analysis and speedup analysis. Platform: |
Size: 2048 |
Author:秦论剑 |
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Description: Learn about Ultra-wideband (UWB) transmission - the most talked about application in wireless communications. UWB wireless communication is a revolutionary technology for transmitting large amounts of digital data over a wide spectrum of frequency bands with very low power for a short distance. This exciting new text covers the fundamental aspects of UWB wireless communications systems for short-range communications. It also focuses on more advanced information about networks and applications. Chapters include: Radio Propagation and Large Scale Variations, Pulse Propagation and Channel Modelling, MIMO (Multiple Input, Multiple Output) RF Subsystems and Ad Hoc Networks. Platform: |
Size: 5261312 |
Author:kinomira |
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Description: 基于tlc2543模数转换芯片和nrf24l01无线数传模块的数据采集与无线传输的接收机源码，接收无线数据后通过rs232串口传给上位PC。keil编程环境，适用于at89s52等单片机。-Based on tlc2543 analog-digital conversion chip and nrf24l01 wireless module for data acquisition and wireless transmission source receiver to receive wireless data transmission through the rs232 serial port upper PC. keil programming environment for at89s52 other microcontroller. Platform: |
Size: 28672 |
Author:jiang |
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Description: 采用TI公司内嵌CAN 2.0B模块的数字信号处理器TMS320LF2407A作为汽车计算机控制系统中的主控制器并兼作网关，构建高低速CAN总线通信控制网络，实现了全部节点之间的数据共享以及相互之间的协同工作，并可在不同节点间实现高效数据传输。试验结果表明总线利用率较高，系统响应速度较快-Using TI embedded CAN 2.0B module, digital signal processor TMS320LF2407A computer control system of a vehicle with the primary controller and also serves as the gateway to build high-low-speed CAN bus communication control network, to achieve the complete sharing of data between nodes, as well as mutual the synergy between the work and are at different nodes for efficient data transmission. The results show that the higher bus utilization, system response speed Platform: |
Size: 41984 |
Author:scnu |
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Description: 正交频分复用技术是近年来发展起来的新技术,在高速无线数据传输领域有很大的应用前景。文章在分析和总结相关文献的基础上,介绍了正交频分复用(OFDM)技术的发展历史,讨论了正交频分复用技术的基本原理和实现方法。通过分析表明,在高速无线通信中OFDM对于消除符号间干扰(ISI),降低系统的复杂度等方面具有很大优势。正交频分复用(OFDM)是一种多载波宽带数字调制技术,它能有效地克服传输中的多径干扰和消除码间串扰,适合于高速率的地面信道视频传输。本文就OFDM技术进行了较为详尽的分析,并对OFDM的传输特性进行了基于FFT算法实现的MATLAB软件模拟及模拟结果分析。 -OFDM is a new technology developed in recent years, high-speed wireless data transmission in the field of great applications. This paper analyzes and summarizes the basis of relevant literature, describes orthogonal frequency division multiplexing (OFDM) technology, history, orthogonal frequency division multiplexing discussed the basic principles and implementation methods. The analysis shows that in the high-speed wireless communication in OFDM symbol for the elimination of interference (ISI), and so reduce the complexity of the system has great advantages. Orthogonal frequency division multiplexing (OFDM) is a multi-carrier wideband digital modulation techniques, can effectively overcome the transmission of multi-path interference and the elimination of intersymbol interference, the ground for high-speed video transmission channel. In this paper, OFDM technology, a more detailed analysis, and transmission characteristics of OFDM FFT algorithm based on the MATLAB software simulation Platform: |
Size: 71680 |
Author:罗萍 |
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Description: I2C总线规范：位传输，传输数据，仲裁和时钟发生，7 位的地址格式，7 位寻址等学习资料-I2C bus specification: digital transmission, data transmission, arbitration and clock, 7-bit address format, such as 7-bit addressing learning materials Platform: |
Size: 782336 |
Author:zhaonan |
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Description: 在研究超声检测技术以及高频信号采集和处理技术发展趋势和PCI总线的特点基
础上，提出了一种基于PCI总线的超声数据采集卡的实现方案。在硬件方面，系统由模
数转换模块、数据缓冲模块、接口模块和逻辑控制模块等四个功能模块构成，着重研究
了接口芯片PCI9052的数据传输方式，采用原理图+VHDL的方法设计了板卡的内部控
制逻辑和数据缓冲模块，并进行了相关的时序仿真和逻辑验证。-Ultrasonic testing in research and high-frequency signal acquisition and processing technology development trends and characteristics based on the PCI bus, a PCI bus based on ultrasound data acquisition was implemented. In hardware, the system consists of analog-digital conversion module, the data buffer module, interface module and the logic control module and other modules of four functions, and focused on the interface chip PCI9052 data transmission, using the method schematic+ VHDL design of the board The internal control logic and data buffer module, and make the relevant time simulation and logic verification. Platform: |
Size: 4976640 |
Author:姚木 |
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Description: 5B6B码是光纤数字通信系统中使用比较广泛的一种线路码型! 数据经过5B6B编码和并串转换后在光纤上传输，串行码序列中连续的比特0或比特1的长度不超过5，数据在0和1之间变换的密度很高,并具有直流平衡的特性，有利于接收电路和时钟恢复电路的设计。-5B6B code is used in fiber optic digital communication systems a more extensive line pattern! Data are 5B6B encoding and conversion, and string after the fiber transmission, serial code sequences in continuous bit 0 or bit 1 of the length of not more than 5, data between 0 and 1, the high density of transformation, and has the characteristics of DC balance, favorable reception circuit and clock recovery circuit. Platform: |
Size: 3072 |
Author:王彬 |
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Description: The cyclic redundancy check, or CRC, is a technique for detecting errors in digital
data, but not for making corrections when errors are detected. It is used primarily
in data transmission. In the CRC method, a certain number of check bits, often
called a checksum, are appended to the message being transmitted. The receiver
can determine whether or not the check bits agree with the data, to ascertain with
a certain degree of probability whether or not an error occurred in transmission. If
an error occurred, the receiver sends a “negative acknowledgement” (NAK) back
to the sender, requesting that the message be retransmitted Platform: |
Size: 74752 |
Author:kiam |
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Description: adc.c用于实现MEGA16中的模数转换功能。
ds1302.c用于实现MEGA16从DS1302芯片中获取时钟信息。
yaokong.c提供一种利用HS0038获取电视机遥控的红外信号并将它解码的方案。
zlg7290.c提供MEGA16与ZLG7290芯片连接的方案，用于外接矩阵键盘。
i2c.c用于MEGA16实现I2C总线数据传输。
12864S.c用于实现LCD12864的串行输入。
ST7920是LCD12864的汉子库的调用函数。
EXPERIMENT.C是基于以上功能设计的一块综合开发板的代码，内有使用说明可供参考。-adc.c used to implement the analog-digital conversion MEGA16 function. ds1302.c used to implement MEGA16 get from the DS1302 chip clock information. yaokong.c provides a use of HS0038 to obtain the infrared TV remote control signal and its decoding programs. zlg7290.c provide MEGA16 ZLG7290 chip connection with the program for the external matrix keyboard. i2c.c I2C bus for MEGA16 achieve data transmission. 12864S.c used to implement LCD12864 serial input. ST7920 is LCD12864 the guy calling the library function. EXPERIMENT.C is based on a more functional design of the comprehensive development of the code board, containing instructions for reference. Platform: |
Size: 19456 |
Author:杜国俊 |
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Description: FPGA的5B6B编译码器的设计代码可以编译而且有波形图 -5B6B code is used in fiber optic digital communication systems a more extensive line pattern! Data are 5B6B encoding and conversion, and string after the fiber transmission, serial code sequences in continuous bit 0 or bit 1 of the length of not more than 5, data between 0 and 1, the high density of transformation, and has the characteristics of DC balance, favorable reception circuit and clock recovery circuit. Platform: |
Size: 617472 |
Author:邓小虎 |
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Search - digital data transmission