Construct the short length of QC LDPC codes without girth 4 and girth 6

Visual C++ 串口通信编程实践 第7章和第8章源码-Visual C++ Serial communication programming practice, Chapter 7 and Chapter 8 Source

几个锁相环仿真程序－通信技术－不记得哪来的啦。希望有用……。-Several phase-locked loop simulation program- communication technologies- do not remember you come from. Seek to help ... ....

pcm编码 有关线性、A律、mu律的pcm编码的matlab实现-pcm encoded on the linear, A law, mu law encoded pcm achieve matlab

利用TAPI实现delphi程序通过语音MODEM拨打一般电话的操作。程序比较简陋，希望各位不吝赐教。-use TAPI achieve delphi procedures by voice modem dial ordinary telephone operation. Humble process, I hope the wing.

解决方案手册- Behrouz A. ForouzanTCPIP协议套件

H263通信规范-H263 communications specification

在vc6.0下c++开发的使用聊天程序，有注释。毕设必备-In vc6.0 under development using c++ chat program, with annotations. Bi-based essential

MATLAB程序的仿真比较。随后，针对QPsK，详细讨论了其基本原理和具体的实现算法，并进行了仿真验证，然后选用HSP502巧数字上变频芯片和HSP50214B数字下变频芯片，设计了数字调制、解调器的实现方案。最后，作为对整个数字视频图像传输系统的宏观认识，利用M户JLAB中的实时建模仿真Simullnk库对典型的视频图像传输系统一数字视频广播系统(D vB)，进行了建模、仿真和初步的分析，结果表明:在高斯白噪声的传输环境下，系统采取的一系列抗干扰措施，包括内、外码级联的信道纠错编码和先进的调制技术(o FDM)等，保证了信源信息传输的有效进行。-MATLAB simulation comparison. Then, against QPsK to discuss in detail the basic principles and specific algorithm, a simulation test, and then choose the cleverest HSP502 figures HSP50214B frequency chips and digital down conversion chips, the design of digital modulation, demodulation for the realization of the program.MJLABSimullnk(D vB):Andean white noise transmission environment, the system adopted a series of anti-jamming measures, including internal and external codes Cascade Channel advanced error correction coding and modulation techniques (o FDM), ensuring a source of information for the effective transmission.

SIP: Session Initiation Protocol具体的讲解了rfc2543-SIP : Session Initiation Protocol specific on the rfc2543

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