intprog

Low density parity check matrix(Description A program written for generating LDPC matrix in the as pattern as discussed in the research paper , " Time varying periodic convolutional codes with low density parity check matrix" by Alberto jiménez Felströ m and Kamil Sh. zigangirov IEEE Transaction on information theory vol 45 no 6 sept 1999. pages 2181-2191)

turbo 编译码器，适用于LTE标准。 LTE标准需要100Mbps，此仿真采用并行交织译码，可以达到LTE标准(turbo encoder and decoder for LTE standard. LTE standard requires 100Mbps, the simulation mixed parallel decoding, can achieve the LTE standard)

rake reciver in matlab

RSSI算法是指根据无线传感器接受到（目标物体）的信号指示强度，计算该信号在传播中的损耗，根据理论或者经验的信号传播模型将信号强度转换成距离。但是这种算法很容易受到天气，障碍物或人员流动的影响，导致测距不精确，从而定位精度不高。但是由于RSSI算法简单，成本低廉，很多无线通信模块提供RSSI值，所以RSSI算法依然应用在众多领域中。(RSSI algorithm is based on wireless sensor to receive the signal intensity (objects), calculate the signal in the transmission loss, according to the experience of the theory or the signal propagation model will be converted into a distance of signal strength.But this algorithm is very vulnerable to weather, obstacles or the influence of the flow of people, lead to range is not accurate, thus positioning accuracy is not high.But because the RSSI algorithm is simple, low cost, a lot of wireless communication module provides RSSI values, so the RSSI algorithm is used in many fields.)

说明：  微环谐振器，给定折射率和耦合系数，计算功率频及延时谱响应(With given index and coupling coeffecient,compute the spectral responses of power and delay time)

This is a code for AODV Routing. It works with matlab. Enjoy it.

learn about MRTD with code

说明：  LFM波形产生，匹配滤波输出，匹配滤波器输出(LFM waveform generator, matched filter output, matched filter output)

数字通信原理--基于MATLAB仿真计算(Digital Communications- Based on MATLAB simulation)

matlab图像处理的基本例程，图像放大和缩小(matlab image processing basic routines, image zoom in and out)