matrix_decompose

reads stl files in matlab

伪随机序列相关性、功率谱、列数以及频数等的分析(Analysis of pseudo-random sequence)

说明：  利用小波分析具有时频局部化特性和熵能对系统状态进行表征的特点，将小波分析和熵结合起来，定义了3种小波熵（小波能谱熵、小波时间熵、小波奇异熵），并给出其算法，揭示了这3种小波熵对系统故障表征的机理，对两种理论信号和基于PSCAD/EMTDC仿真的输电线路故障信号(Based on the characteristics of time-frequency localization of wavelet analysis and entropy energy to represent system state, three kinds of wavelet entropy (wavelet energy spectrum entropy, wavelet time entropy and wavelet singular entropy) are defined by combining wavelet analysis and entropy, and their algorithms are given. The mechanism of these three kinds of wavelet entropy for system fault characterization is revealed. The results show that the three kinds of wavelet entropy can be used to characterize system fault Road fault signal)

一个非常好的图像恢复的工具集，matlab编写的源代码。(A very good image restoration tools, matlab prepared source code.)

说明：  自抗扰控制器的simulink仿真，为自抗扰控制器的使用提供一个实例(Simlink simulation of ADRC provides an example for the use of ADRC.)

地心惯性坐标系到地理坐标系；地理坐标系到地球坐标系等转换，共计8个程序(geocentric inertial coordinate system of geographical coordinates; Geographic coordinates of the Earth coordinate system conversion, a total of eight procedures)

本代码应用FDTD 方法模拟微带带阻滤波器，并得到S11，S12 曲线以及显示电磁波在空间的传播。频率范围为0-20GHz。微带基片的相对介电常数为6.15，厚度是1.27mm。(Application of FDTD method to simulate the code microstrip band-stop filter, and get S11, S12, and the curve shows the spread of electromagnetic waves in space. Frequency range of 0-20GHz. Microstrip substrate relative dielectric constant of 6.15, the thickness is 1.27mm. )

matlab应用程序可以实现图像的修正,可以使用。(matlab application images can be amended, you can use.)

2阶Runge_kutta解微分方程 调用格式同ode45， f为微分方程函数，a b为积分区间，x0初值 h为步长，默认为0.001(Differential Equation of Order 2 Runge_kutta call format with ode45, f for the differential function, ab for the integration interval, x0 h for the initial step, the default is 0.001)

遗传算法在求解一元函数极值中的应用，可供新手学习、参考(a genetic algorithm is given to solve a simple function’s extremum problem.)