xray_new

实现了P4多相码的产生和脉压，互补码的产生和自相关输出(The realization of the P4 polyphase code generation and pulse pressure, complementary code generation and auto-correlation output)

求解电力网络机电暂态DAE方程，得到系统随时间变化的状态量轨迹(solve the mechanical/electrical transient DAE function of power system, in order to get the trace of the state parameter when time varies)

信号脉冲压缩的MATLAB实现程序 内附多个源代码，可作学习参考(Signal pulse compression to achieve the MATLAB program containing a number of source code, reference can be used for learning)

说明：  遗传算法，基于二进制编码形式，用于解决优化问题，具有很好的全局优化效果。(genetic algorithm for optimization)

说明：  这是MATLAB智能算法30个案例分析（第2版）的code部分，内容详实，有兴趣学习基于matlab只能优化算法的可以参考，里面主要有遗传算法、粒子群算法、模拟退化算法等的演示。(This is the code part of the 30 case analysis (second edition) of MATLAB intelligent algorithms. The content is detailed. If you are interested in learning based on matlab, you can only optimize the algorithm. You can refer to it. There are demonstrations of genetic algorithm, particle swarm algorithm, simulation degradation algorithm, etc.)

说明：  用matlab做的，而且有图片和解释。我用了2个小时写的，虽然不太好，还是可以供大家参考的。(using Matlab done, but pictures and explanation. I spent two hours writing, though not very good, or to be available for reference.)

ofdm加窗前后的对比频谱图，以及循环前后缀重叠与不重叠两种情况的对比，最后给出了误码率的计算。(ofdm added after the contrast spectrum window, and the cycle before the suffix overlap and contrast the two cases do not overlap Finally, the bit error rate calculation.)

this program treat image processing and segmentation methods and can help for functions which concern segmentation

SVM multi class 1 to all classifier matlab code

Corrects lightening using a quadratic fit.