红外线发射与接收源程序 实现红外线的接收和发送.

这是一个十分经典的异步收发器的设计，将发送和接受分开，并带有校验位，同时附赠结构图和仿真结构-This is a very classic asynchronous transceiver will be designed to send and receive separately, and with a parity bit, and comes with charts and simulation of the structure

网上找的关于LDPC码的学习资料，希望对大家有用。-Online on the LDPC code to find the learning materials, useful for all of us hope.

this code is help you to draw Fourier Series . with this code you can change some variable and explain what change for education.

一个不错的SMS文档，大家可以看看。-SMS a good document, we will look at.

根据输入的调制方式对输入序列进行调制，完成对星座图的映射-According to the modulation input sequence of input modulation, the completion of the mapping of the constellation diagram

很好的卷积码译码资料，关键字Viterbi 译码算法，BCJR 译码算法-Good convolutional codes decoding information, keyword Viterbi decoding algorithm, BCJR decoding algorithm

跨平台的最高效的c语言IO事件框架，windows平台下功能稍弱-cross-platform of the most effective language IO c incident framework, windows platform functionality supporters

应用背景 FIR(fini te impulse response)滤波器是数字信号处理系统中最基本的元件，它可以在保证任意幅频特性的同时具有严格的线性相频特性，同时其单位冲激响应是有限的，没有输入到输出的反馈，系统稳定。因此，FIR滤波器在通信、图像处理、模式识别等领域都有着广泛的应用。关键技术在进入FIR滤波器前，首先要将信号通过A／D器件进行模数转换，使之成为8bit的数字信号，一般可用速度较高的逐次逼进式A／D转换器，不论采用乘累加方法还是分布式算法设计FIR滤波器，滤波器输出的数据都是一串序列，要使它能直观地反应出来，还需经过数模转换，因此由FPGA构成的FIR滤波器的输出须外接D／A模块。

文件为Delphi下的.pas源文件，该文件为一个串口通讯的封装类．-document for the Delphi. Pas source document, which for a serial communications package category.

Channel estimation for OFDM systems based on comb-type pilot arrangement in frequency selective fading channels 一篇信道估计的经典文章-Channel estimation for OFDM systems based on comb-type pilot arrangement in frequency se lective fading channels a channel estimation of the classic article