Line Code: polar unpolar

在VC 6.0中使用MSComm编程，可以实现串口访问

rtp中文协议，做媒体流开发的可能会用到。我做3ｇ手机用的-rtp Chinese agreement to do the development of media streams may be used. I used to do 3g phone

MODBUS_TCP规范,不过这是英文版，英语水平不高的同志可以装个金山词霸！-MODBUS_TCP norms, but this is the English version, English level is not high comrades can fit 000 free email!

RS485通信协议 ，主要讲述通信的原理，希望对大家有所帮助-thank you very much

利用Serial Port类通过485接口实现对艾默生TD1000变频器的启动 停机 频率设定-Serial Port class through the use of 485 interface to the Emerson TD1000 start-stop frequency converter to set

interpol security system using distributed system concepts

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.

labview  变频控制485通信，CRC校验。labview  变频控制485通信，CRC校验

接口模块，通过对高位地址的编码可实现在一个FPGA中配置四个独立的功能模块，每个功能模块具有一个带FIFO的输出口和13个独立的可由DSP读写的寄存器，寄存器功能可自定义。模块还包含两个全局寄存器，可实现全局复位，中断等功能。该模块以应用于实际的项目中，目前运行良好

在MATLAB中用Goertzel算法（先用FFT算法，再用goertzel算法，）仿真DTMF的产生与检测的程序。应用于双音多频信号的产生与检测。-in Goertzel algorithm using MATLAB (first using FFT algorithm, reuse goertzel algorithm) simulation DTMF detection with the selection process. Used DTMF signal detection with the selection.