spectral_efficiency

源于Fortran编写，用于学生信息数据库操作，如查找，排序，插入，删除等(Prepared from Fortran for student information database operations, such as search, sort, insert, delete, etc.)

detect voice from signal of speach Voice Activity Detector (VAD) with MMSE a posteriori noise estimation and Decision-Directed SNR estimation

该算法在原有的算法基础上提出的TDOA泰勒算法，可以用在传感器定位和蜂窝网定位。且该算法的定位精度比较高。(The algorithm is based on the original algorithm proposed TDOA Taylor algorithm can be used in sensor positioning and cellular location. And the algorithm is relatively high positioning accuracy.)

本程序实现mimo无线通信的仿真程序，是通信工程用matlab实现mimo仿真的的必备程序。(This program implements mimo wireless communications simulation program, communications engineering simulation using matlab mimo essential procedures.)

二维泊肃叶流动的模拟源代码，利用格子波尔兹曼方法进行计算，计算结果如程序所示(The analog source code of the two-dimensional Poiseuille flow using lattice Boltzmann method is calculated, the calculated results of such procedures shown)

如下亮度变换功能的函数：负片变换、对数变换、gamma变换、和对比度拉伸变换。(Brightness as a function of conversion functions: negative transformation, logarithmic transformation, gamma conversion, and contrast stretching transformation.)

用matlab写的太阳照在z平面上。即自己做的一副比较美的动画。(Matlab write with sun in the z plane. That is their own doing a more beautiful animation.)

Y.T.Chan在其论文中提出一种具有解析表达式解的非递归双曲线方程组解法，该算法具有计算量小，速度快，且当TDOA参数估计误差服从高斯分布的情况下，定位精度较高。 本程序借鉴Chan论文中提出的算法，基于MATLAB程序，在已知TDOA估计参数的情况下，对信号源位置进行估计。 希望能够对研究 干扰源定位、无源定位的同志提供帮助。(YTChan in his paper presents a solution with the analytical expression for the non-recursive solution of hyperbolic equations, the algorithm has calculated the amount of small, fast, and when the TDOA estimation error of Gaussian distribution in the case, positioning accuracy than high. The papers presented in the program learn from Chan algorithm, MATLAB-based program, known TDOA estimation parameters in the case, the signal source location estimates. Hope to the study of interference location, passive positioning of the comrades to help.)

pll锁相环编程程序 可以使用 matlab 编程语言(The program can be used PLL phase locked loopThe MATLAB programming language )

蒙特卡洛模拟的例子以及程序 关于结构可靠度分析的 有需要的可以下载看看(Examples and programs of Monte Carlo simulation)