LDPC-test-for-girth-or-cycle-of-the-length-4

解决线性规划优化问题，在lingo界面中得到广泛的运用(solve linear programming optimization problems, the lingo interface widely used)

In this experiment our equation is f(x0)=x^3-3x-1.We have to find the real root of this equation between 1 and 2.The programme has been shown in the"new_rap" We have done the comparison between the Newton Rapson method the false position method

通过MATLAB工具箱运用离散傅里叶变换对正弦信号和放波信号进行傅里叶分析(Through the use of Discrete Fourier Transform MATLAB toolbox on the sine wave signal and let the Fourier analysis of signals)

说明：  一组完整的带注册程序的C#原代码，是基于C语言编写的(A complete set of registration procedures with the C# source code, is based on the C language)

处理超声设备用线阵探头采集到的RF数据，对其进行分析，并进行成像。(signal processing)

Exponentially weighted covariance matrix

matlab basic on fir,matlab basic on fir

从曲线中检测到其峰值：先利用二次求导得到所有凸点，设置门限，去除过低的凸点，然后利用滑动窗的方法，在凸点中求得满足峰值要求的点(Detected from the curve to its peak: the first use of the second derivative method to get all the bumps, set the threshold too low to remove the bumps, and then use a sliding window, obtained in a bump to meet peak requirements of point)

说明：  第二种孤岛运行的控制是采用下垂控制（droop控制），Droop控制就是用来模拟频率一次调整。通过控制电力电子逆变器来实现。(The second kind of island operation control is droop control, Droop control is used to simulate a frequency adjustment. It is realized by controlling the power electronic inverters.)

在matlab环境下，采用二进制的编码方式，利用遗传算法，对数学问题进行研究。(In the matlab environment, the use of binary encoding, the use of genetic algorithms, to undertake a study of mathematics.)