Q1

从经典功率谱估计周期图法原理入手，从理论上分析了其存在的局限性，借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力，进行实验仿真，比较不同的窗函数，不同的数据长度对Welch法谱估计质量的影响，并分析了造成这些影响的原因。(The paper mainly introduces the principles of Periodogram method of classical PSD estimation,analyzes the deficiency of Periodogram method in theory,and makes use of Welch to amend Perodogram method. By the use of simulation in Matlab, the impacts of different window function and different lenghth of data on estimation quality of Welch are discussed and the reasons of the impacts are analyzed.)

svpwm file with control unit file can be executed in matlab for space vectir pwm

运用matlab提取图像并将其转化为灰度图和其它图形，实现图像变换(Extraction using matlab and converted into grayscale images and other graphics, Image transformation)

lfm信号的处理，lfm信号的处理的matlab仿真(lfm signal processing)

非线性信道matlab仿真程序，可以实现色散和非线性效应(nonlinear fiber)

meifilter倒谱系数滤波器,欢迎大家使用(it s melfilter, welcome to download)

用于计算盒维数的程序，分形维数的一种,分形理论是近年热门(it is for capacity dimension, and the capacity dimension is one of the fractal dimensions。Fractal thoery is the heat tropic nowadays)

matlab下的fastica工具箱,可以直接使用，有界面(fastica toolbox matlab)

The following Matlab project contains the source code and Matlab examples used for continuous wavelet transform and inverse.

改进斥力场函数和使用虚拟中间目标点法解决传统人工势场法局部极小值问题(Improving the repulsive force field function and using the virtual intermediate target point method to solve the local minimum problem of traditional artificial potential field method)