inv_pend

通过fir1设计FIR滤波器，fir2设计任意频率响应的滤波器，采用卷积计算信号通过系统后响应（还原），采用fftfilt计算信号通过系统后响应，一个长序列和一个短序列的卷积。(Fir1 through FIR filter design, fir2 design the frequency response of any filter, the use of convolution calculation of the signal through the system to respond to (restore), calculated using fftfilt signal through the system to respond to, a long sequence and a short sequence of convolution.)

3机9节点系统暂态稳定计算程序，matlab程序实现(3 machine 9 bus system transient stability program)

Filtros Ma t lab trae varios filtros para series de tiempo

平面桁架Matlab程序，计算刚度矩阵使用程序(Truss Matlab program, use the program to calculate the stiffness matrix)

1、不同阶次模拟巴特沃兹滤波器的频率响应 2、根据模拟滤波器指标，设计低通巴特沃兹滤波器 要求通带截止频率 fp = 5kHz, 通带最大衰减 ɑp =2dB， 阻带截止频率 fs= 12kHz, 阻 带最小衰减ɑs =30dB,按照上述指标设计巴特沃兹低通滤波器。 3、给定模拟滤波器，按照不同采样频率设计数字 IIR，观察采样频率对设计结果的影响 已知模拟滤波器传输函数 H(s)为 2 0.5012 ( ) 0.6449 0.7079 H s s s = + + 按照不同采样频率 Fs1=1Hz, Fs2=10Hz 使用脉冲响应不变法将 H(s)转换为 H(z)数字 IIR 滤波器。观察不同采样频率设计得到的数字 IIR 的差异。 4、给定数字 IIR 指标，用脉冲响应不变法设计 IIR。 数字低通滤波器的指标为: 0.2 , 1 , 0.3 , 15 p p s s ω π α ω π α = = = = dB dB ,使用巴特沃 兹滤波器设计数字 IIR。比较采样频率 Fs=1， 2 时设计过程中的模拟滤波器，数字滤波 器的变化。 5、用双线性变换法设计 IIR，并同脉冲响应不变法比较设计的结果。数字滤波器指标要 求如下 0.2 , 1 , 0.3 , 15 p p s s ω π α ω π α = = = = dB dB(1.Grasp the impulse response method and bilinear transformation design IIR filter principle and specific design methods, familiar with double A computer program for designing lowpass, bandpass and highpass IIR digital filters by linear design; 2 . familiar with the design of analog Butterworth filter, master impulse response method and bilinear transformation method to design digital IIR Filter method)

MODBUS programEach instance of modbusgw acts a master to a modbus serial network. Currently each instance of modbusgw will only support one modbus serial network (future revisions will support multiple networks in a single gateway for now, it is necessary to start multiple instances). (MODBUS programEach instance of modbusgw acts a master to a modbus serial network. Currently eachinstance of modbusgw will only support one modbus serial network (future revisions will supportmultiple networks in a single gateway for now, it is necessary to start multiple instances).)

MUSIC 算法实现，实现窄带信号的超分辨率DOA估计(MUSIC algorithm, the narrowband signal super-resolution DOA Estimation)

说明：  学习结构动力学newmark法的简单程序，单自由度和受迫振动(A Simple Program for Learning the Newmark Method of Structural Dynamics, Single Degree of Freedom and Forced Vibration)

control of fase in frecuency domain

高斯法用于IEEE30节点系统的潮流计算源代码(Gauss law for the IEEE30 bus system source code flow calculation)