some C++ builder documents collected by myself, which are mainly on serial port

引入PEG（Progressive-edge-growth）算法来构造适合线性时间编码的LDPC校验矩阵，译码时采用简化最小和Min-Sum译码算法实现简化译码．仿真结果表明，该方法能够构造适合LDPC码的线性时间编码的下三角校验矩阵日，并且用此方法构造的LDPC码性能非常接近原来PEG算法构造的LDPC码．同时通过采用最小和Min-Sum算法降低译码复杂度．-The introduction of PEG (Progressive-edge-growth) algorithm to construct suitable for linear time encoding of LDPC check matrix, decoding simplified when the smallest and the Min-Sum decoding algorithm decoding simplified. Simulation results show that this method can construct LDPC codes suitable for linear time encoding on lower triangular calibration matrix, and constructed using this method the performance of LDPC code is very close to the original PEG algorithm constructed LDPC codes. At the same time through the use of the smallest and the Min-Sum decoding algorithm to reduce complexity.

OMNeT++的例子，可以根据个人需要修改参考，欢迎交流-OMNeT++ Example, you can modify the reference in accordance with individual needs are welcome to exchange

网络工作说明FC-6

板卡驱动，非常有效的。关于数字电视。没设么可说了-Board-driven, very effective. With regard to digital TV. The absence of what can be said that the

With using noisy data and created data, soft and hard decision are made by viterbi decoder

通过Winsock API实现UDP聊天的程序- Realizes the procedure through Winsock API which UDP chats

上面上传的代码是有关对话板的程序完全在vc++环境下开发不过是visualstudio2005-above upload code is the dialogue plate in the correct procedures vc development environment is visuals tudio2005

再贡献一份基于osip 协议栈的用户代理，enumphone，可以研究一下-a further contribution osip protocol stack based on the user agent, enumphone can study

VC++发送带附件邮件程序，使用base64编码，能够实现收发自如，资源消耗小，可以传输文字，图片，附件， 接口已经全部封装好，使用非常方便，欢迎大家参考

about signal processing techniques