Chebyshev-filters

解方程，其中包含解方程的一些解法，源代码是M文件的形式，还有PPt的相关教程(Solving equations, solving equations containing a number of solutions, M-file source code form, as well as the related tutorial PPt)

LDA for Matlab, Good Code! Wish you enjoy it!(LDA for Matlab, Good Code! Wish you enjoy it!)

Digital modulation over fading channel

matlab codes for systems level implementation

计算非线性薛定谔方程工具箱,详细给出了运行中脉冲的变化，运行成功(Calculate the nonlinear Schrodinger equation toolbox gives the changes in detail the operation of the pulse, running successfully)

finding the density matrices

生成数字信号处理课程常用信号：冲激、阶跃、斜坡、正弦、复指数和指数信号，幅度长度时延频率相位可控。(Signal generation, capable of generating pulse, step, ramp, sine, complex sine and exponent signals.)

svm 的参数优化，利用交叉验证法选择最优参数c g，最终提高训练集的分类准确率,更好的提高分类器性能(Svm parameter optimization, the use of cross-validation method to the optimal parameter c g, and ultimately improve the training set classification accuracy，better improve the classifier performance)

说明：  针对煤矿井下巷道狭长，信号多径效应明显，接收信号强度（RSSI）测距算法受井下环境影响大，定位精度低的情况，提出了一种信标节点链式部署结构下的动态RSSI测距算法，该算法以信标节点间的距离和它们间测量到的RSSI值为参考，计算巷道内实际环境下的路径衰落指数，以提高RSSI测距算法对环境的适应性。(A dynamic RSSI location algorithm is proposed based on the beacon nodes chain deployment of tunnel Wireless Sensor Networks and the algorithm takes the distance and the corresponding RSSI between the adjacent beacon nodes into account to calculate the actual path loss parameter in the tunnel, thus improving the environmental adaptation of the location algorithm. )

64个子载波的OFDM系统在多径衰落信道中LS和MMSE信道估计误码率比较，MATLAB程序(64 sub-carrier OFDM system in multipath fading channel LS and MMSE channel estimation error rate more, the MATLAB program)