modal-parameter-identification-

genetic algorithm program for power system

基于增广矩阵束的二维doa算法，阵列流型为L型，在matlab环境下实现(Doa algorithm based on a two-dimensional array Flow augmented matrix beam is L-shaped, achieved in the matlab environment)

formant estimation matlab

Matlab/Simulink仿真课程设计（论文）任务书,电压型逆变器 SPWM 调制技术的仿真.单相单极性SPWM调制,单相双极性SPWM调制,三相双极性SPWM调制(Matlab/Simulink simulation curriculum design (thesis) paper SPWM voltage source inverter modulation simulation. Unipolar SPWM modulation single-phase, single-phase bipolar SPWM modulation, three-phase bipolar SPWM modulation)

介绍使用MATLAB进行数值分析实验的的相关知识和程序开发事项(Describes experiments using MATLAB for numerical analysis of the relevant knowledge and program development matters)

包括蚁群优化算法，梯度优化算法两个文档。(Including ant colony optimization algorithms, gradient optimization algorithm the two documents.)

基于ＨＯＵＧＨ变换的检测圆的ＭＡＴＬＡＢ小程序．(HOUGH transform-based detection of small round MATLAB procedures.)

DFT进行频谱分析时的三种现象 1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。 采样前加低通滤波器防混叠 2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。 改用其他窗函数（非矩形）改善泄漏。 3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)

压缩感知，本例子是通过小波基矩阵作为稀疏基，来恢复出原始信号，效果相当明显。(Compressed sensing to recover the original signal by wavelet transform basis matrix , the effect is quite obvious.)

kd树的结构和分析及其源代码的程序使用matlab(kd tree structure and analytical procedures used and its source code matlab)