plotFOV

使用matlab实现香农编码，并求出编码效率(Using matlab to achieve the Shannon encoding, and find the coding efficiency)

声纹识别MATLAB源程序全代码，可以用来做密码锁，声控装置。(Voiceprint identification of all MATLAB source code can be used to make locks, voice-activated device.)

IEEE802.11物理层OFDM仿真，做了QPSK和QAM两种调制方式和不同信道估计方式的对比图，信道包含瑞利衰落和高斯噪声(IEEE802.11 OFDM physical layer simulation, QPSK and QAM made ​ ​ two modulation methods and different ways of estimated channel comparison chart)

说明：  另一种潮流计算程序，本程序使用C语言编写(Another flow calculation procedures, the procedures using the C language)

改压缩包包含了三个程序 分别是对坐标对称的自由梁的模态频率和色散关系的求解(Reform package contains three programs are free modal frequency of the beam coordinate symmetry and the solution of the dispersion relation)

这是一部分析非平稳信号的相关书籍，含有很多种分析方法，主要有时频分析方法和应用及相关例子(This is an analysis of non-stationary signals of books, containing a variety of analytical methods, main frequency analysis method and application examples sometimes)

通过学习LDPC编译码原理，编写了LDPC码的编译码程序。通过此程序可以更好的实现LDPC码的仿真(in this passage we have write the program of edcoded and decoded of LDPC code.through it we can undersatand LDPC more.)

Rosen梯度投影法解约束优化问题minf（x）；Ax>b 的算法，其中约束条件为线性约束，A为约束系数矩阵，b为约束向量。基本思路是从可行点出发，沿着目标函数减小的方向搜索求出新的可行点，如此迭代下去。(Algorithm of gradient Rosen projection method for solving constrained optimization problems)

calculate mel frequency of a signal

计算兄弟数，平时练习题，算法比较笨，欢迎指教(Calculate the number of brothers, usually exercises, algorithm is stupid, please advise)