coding, communications shift register integrated version of MFC

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用VB6实现仪器串口通信及检测功能-with VB6 achieve serial communication equipment and detection capabilities

包含两篇关于FXO、FXS的文档，详细介绍了他们的区别和定义，是开发VOIP设备的很好的参考材料。这种材料可是很难找哦。-contains two of FXO, FXS document, detailing their differences and definitions, the development of VoIP equipment is a good reference material. But this material is difficult to find, oh.

这个源代码是G711解码程序。欢迎大家下载、试用。谢谢大家的支持！                                                                          

this a book that learning serial programming-this is a book that learning serial programming

中国移动MMS规范，主要描述了中国移动彩信平台的结构概述，相信您读完对，整个彩信体系会有一定的了解-China Mobile MMS norms, the main description of China Mobile MMS platform structure outlined, I believe you read right, MMS system as a whole will have a better understanding

FIDO网超大文件传输的C语言源程序,仅仅只是为了学习和交流 -FIDO super network file transfer the C language source files, merely to learn and exchange

硕士学位论文:LDPC码在瑞利衰落信道中的性能分析 信道编码技术可以带来编码增益，节省宝贵的功率资源，己经成为现代数字 通信系统中必不可少的关键技术。LDPC码采用低复杂度的迭代译码算法，且具有 逼近香农限的性能.由于LDPC码具有诸多优点，它在信息可靠传输中的良好应 用前景己经引起学术界和rr业界的高度重视，成为当今信道编码领域最受瞩目的 研究热点之一。 本文主要探讨了LDPC码在瑞利衰落信道中的性能，基于LDPC码的分组空 时码系统，以及基于LDPC码的正交频分复用系统.-master"s degree thesis : LDPC codes in Rayleigh fading channels Performance Analysis channel coding technology can bring coding gain, Power saving valuable resources have become modern digital communication systems essential to the critical technologies. LDPC low complexity of the iterative decoding algorithm, having approximation Shannon limit performance. Because LDPC has many advantages, It reliable transmission of information in the application of good prospects has been caused rr academia and industry are taking, become the channel coding areas of the most watched one of the hot spots. This paper mainly discusses the LDPC Rayleigh fading channels in the performance Based on LDPC a space-time coding system, and based on LDPC

伪随机序列在扩频通信、流密码、信道编码等领域有着十分广泛的应用。文通过对伪随机m序列的编码和译码算法进行的MatLab语言仿真，验证了伪随机序列码的编码和译码算法，丰富了伪随机序列的实现方法，并提供了源代码。-Pseudo-random sequence in the spread spectrum communication, stream cipher, in areas such as channel coding has a very wide range of applications. Through the pseudo-random sequence m of encoding and decoding algorithm for the MatLab language simulation code pseudo-random sequence of coding and decoding algorithm, has enriched the realization of pseudo-random sequence method, and provides the source code.

LTE上行随机接入过程第一步，在PRACH上发送preamble信号，接收端接收并进行相关峰检测其延迟。该文档为条件1200km/h速度下，系统带宽20MHz，采样率30.72MHz的情况下，未考虑多普勒频移，小区半径为30km的前导检测过程。