在windows平台上，通过MODEM开发传真代码。

认知无线电能量检测算法程序。 能量检测是最简单、方便的频谱感知方法，该方法通过比较能量检测值与预先设定的能量阈值来检测主用户信号。

QAM星座图的原理和应用 QAM星座图的原理和应用-QAM constellation diagram of the principle and application of the principle of QAM constellation diagram and applications

zigbee cc2430 单片机程序 无线温度采集及串口通信演示-single-chip wireless zigbee cc2430 process temperature acquisition and demonstration of serial communication

Motorola开发资料,CodeWarrior for SEMV-HC08的用法-material from Motorola,illustration on CodeWarrior for SEMV-HC08

IETF12号的文档，比较新，拿来共享给研究P2P和SIP的朋友-IETF12 issue of the documents, a relatively new and used to share research and P2P SIP friends!

一份MMS彩信资料，可以开发出简单的彩信，用JAVA实现-a MMS MMS information, we can develop a simple MMS, using JAVA

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

PC-MCU串行通信的应用设计方法-PC-MCU Serial Communication Application Design

The program can count the number of the girth 4 of LDPC codes.

改进行级联CIC梳状滤波器，通带内平坦性好，带外抑制更好-To carry out cascade CIC comb filter, with passband flatness, and band rejection better