greymodel

电力系统仿真技术，主要是matlab环境下的电力系统仿真研究(Power system simulation technology, mainly is the matlab environment simulation of power system)

基本原理就是首先求解出连续系统微分方程的近似解，然后对系统的Jacobian矩阵进行QR分解，计算Jacobian矩阵特征值的乘积，最后计算出LE和分数维(The basic principle is to first find the approximate solution of differential equations continuous system, then the system will be on the Jacobian matrix QR decomposition product Jacobian matrix computing eigenvalues, and finally calculate the fractal dimension LE)

去斜处理（宽带的匹配滤波）Stretch方法是针对线性调频信号而提出的， 其方法是将输入信号与参考信号 （经适当延迟的本振信号， 延迟量通常由窄带信号测距结果估计出） 混频 ，则每一个散射点就对应一个混频后的单频分量，对混频输出的信号进行 DFT 处理 ，即可获得目标的距离像，对参考信号的要求是应具有与输入信号相同的调频斜率。(dechirp matched filter Stretch method is proposed for linear frequency modulation signal. It mixes the input signal with the reference signal (local oscillator signal with appropriate delay, the delay is usually estimated from the result of narrowband signal ranging). Then each scattering point corresponds to a single frequency component after mixing, and DFT is performed on the mixed-frequency output signal. The range profile of the target can be obtained by processing, and the reference signal is required to have the same frequency modulation slope as the input signal.)

AP-FFT频谱校正方法,需要自己改进一部分。(AP-FFT spectrum correction method, need to improve their own part.)

家庭能量管理负荷优化调度。计及光伏出力、储能对可平移负荷进行调度以实现节能效果。有注释。(Home energy management. Load optimization scheduling. PV power generation and energy storage are considered to schedule the translational load to achieve energy saving. The program has a lot of comments.)

fir滤波器设计 输入设计指标 计算过渡带宽度 按哈明窗数据，计算滤波器长度(fir filter design input design index to calculate the transition zone width by Hamming window of data to calculate the length of filter)

说明：  自从发表《RS纠错编码原理及其实现方法》以来，收到很多初识RS编码的读者的来信， 大家纷纷表示这篇文章对初学者很有帮助，但同时也指出了很多不足。比如第一版的例子中都是按照码长 ， 但在实际应用中并不总是这种情况，还有就是MATLAB程序，由于作者在工程中是在DSP上用C实现的， 所以文章中的MATLAB程序只是用来说明问题，并没有经过调试。做事应该有始有终，这次修改， 附有详细的经过调试的MATLAB程序。并尽量做到程序具有通用性。(Since the publication of RS error-correcting coding theory and method, since the RS coding acquaintance received a lot of letters from readers, we have expressed this article helpful to beginners, but it also points out the many deficiencies. For example, the case of the first edition are in accordance with the code length, but in practical applications is not always such a situation, there is a MATLAB program, because the author works in the DSP using C to achieve, so the article in MATLAB program is used to describe the problem and not debug. Things should stay the course, this changes with the detailed procedures after debugging MATLAB. And as far as possible the procedures are inter-operable.)

matlab 和vpi联合仿真，实现数字滤波器(vpi and matlab)

病态矩阵分析 多角度阐明什么是病态矩阵 并且采用了正交化的处理来解病态矩阵(Pathological matrix multi-angle matrix and to clarify what is ill treatment by the orthogonal matrix to solve ill)

this is simple matlab code for EASI algorithm in BSS