STDL80

用复化梯形公式、复化Simpaon公式、复化Gauss-legendre公式计算定积分的例子(Trapezoid formula with complex, complex of Simpaon formula, complex formula of Gauss-legendre example of the definite integral)

前推回代法计算8节点配电网电流、电压和网损。(Caculating current，voltage and system losses of distribution network with 8 nodes using forward-backward sweep method.)

This directory includes matlab interface of the curvelet transform using usfft. Basic functions fdct_usfft.m -- forward curvelet transform afdct_usfft.m -- adjoint curvelet transform ifdct_usfft.m -- inverse curvelet transform fdct_usfft_param.m -- returns the location of each curvelet in phase-space Useful tools fdct_usfft_dispcoef.m -- returns a matrix contains all curvelet coefficients fdct_usfft_pos2idx.m -- for fixed scale and fixed direction, returns the curvelet which is closest to a certain point on the image Demos fdct_usfft_demo_basic.m -- display the shape of a curvelet fdct_usfft_demo_recon.m -- partial reconstruction using curvelet fdct_usfft_demo_disp.m -- display all the curvelet coefficients of an image fdct_usfft_demo_denoise.m -- image denoising using curvelet(This directory includes matlab interface of the curvelet transform using usfft. Basic functions fdct_usfft.m-- forward curvelet transform afdct_usfft.m-- adjoint curvelet transform ifdct_usfft.m-- inverse curvelet transform fdct_usfft_param.m-- returns the location of each curvelet in phase-space Useful tools fdct_usfft_dispcoef.m-- returns a matrix contains all curvelet coefficients fdct_usfft_pos2idx.m-- for fixed scale and fixed direction, returns the curvelet which is closest to a certain point on the image Demos fdct_usfft_demo_basic.m-- display the shape of a curvelet fdct_usfft_demo_recon.m-- partial reconstruction using curvelet fdct_usfft_demo_disp.m-- display all the curvelet coefficients of an image fdct_usfft_demo_denoise.m-- image denoising using curvelet)

这是一个优化IIR滤波器的源码,能设计出4个极点0个零点的IIR优化滤波器(This is an IIR filter optimized source code, will design four pole 0 0.1 IIR filter optimization)

MATLAB命令大全。可以帮助广大初学者学习使用matlab。(MATLAB command Daquan. Can help the beginners to learn how to use matlab)

说明：  采用正交匹配追踪（OMP）算法实现信号重构(Orthogonal matching pursuit algorithm for signal reconstruction)

This program takes the speech file and number of poles as inputs and gives LPC coefficients and the gain factor as output.Also includes code to find out LSFs.Code for LMS algorithm also included.

电路与系统分析，matlab的应用，希望对学习matlab的同学有所帮助。(Circuit and system analysis, the application of matlab, and I hope to learn matlab help students. )

该算法是实现Kmean聚类算法。包含初始聚类中心，聚类成员列表，最终聚类中心，最终聚类中心的距离，方差分析表，每个聚类中的案例数。(The algorithm is a clustering algorithm to achieve Kmean. Contains the initial cluster centers, cluster membership list, the final cluster centers the final cluster centers, ANOVA table, the number of cases in each cluster.)

这是一种整流电路，可以将相位相差120的三相交流电变换为直流，变化方法用到了电机控制中的坐标变换，SVPWM算法，方法比较新颖。(a kind of circuit which can convert three_phase AC voltage to DC voltge)