sound

This is my graduation design something, people in need can reference about signal processing signal detection

说明：  用Matlab实现阴历和阳历相互转换，里面有注释可供参考(Using Matlab to achieve conversion between the lunar and solar calendar, which has notes for reference)

这是高等电磁场的基础内容，通过以pulse函数为基函数，采用矩量法对直导线电容求解的实现程序。(This is the basic content of the higher electromagnetic field pulse function as the base function, the realization of the program of the method of moments of straight wire capacitance solving.)

海杂波抑制技术研究，对于学些海杂波建模的很有用(it is help for sea clutter suppression)

用MATLAB实现图像的锐化，个人修改过的，绝对可用。(A piece of matlab code for image sharpening.)

matlab对语音信号滤波，并比较滤波前后的音效。(matlab on the voice signal filtering, and compare the sound before and after filtering.)

Pure aloha theory of simulation

Solve 2d wave equation with Finite difference method有限差分法解二维波动方程(Solve 2d wave equation with Finite difference method)

维纳滤波器（Wiener filter）是由数学家维纳（Rorbert Wiener）提出的一种以最小平方为最优准则的线性滤波器。在一定的约束条件下，其输出与一给定函数（通常称为期望输出）的差的平方达到最小，通过数学运算最终可变为一个托布利兹方程的求解问题。维纳滤波器又被称为最小二乘滤波器或最小平方滤波器，目前是基本的滤波方法之一。(Wiener filter (Wiener filter) is caused by a mathematician Wiener (Rorbert Wiener) proposed guidelines for the minimum square optimal linear filter. Under certain constraints, which outputs a given function (often called the desired output) reaches the minimum squared differential, the final mathematical operation may become a problem solving Equation Leeds Taub. Wiener filter is also known as the least squares filter or least squares filter, currently one of the basic filtering methods.)

很好的matlab/simulink电子书(ebooks on matlab/simulink)