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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.)

doppler effect simulation in matlab

Arranges blocks of a matrix as rows of another matrix.

15名基督教徒和15名异教徒同乘一船航行，途中风浪大作，危机万分，领航者告诉大家，只要将全船的一半人投入海中，其余人就能幸免。大家都同意这个办法，并协定者30人围成一圈；由第一个人起报数，每数至第9人便把他投入海中，下一个接着从1开始报数，第9人又被投入海中，依次循环，直至剩下15人为止。问题是如何排法使投入海中的人全为异教徒？(15 Christians and pagans 15 vessels with one by the way, big waves, extreme crisis, leader told everyone that as long as will be half the person boat into the sea, and the remaining person will be able to escape. We all agree that this approach, and agreements were 30 form a circle from the first reported from a few individuals, the number to 9 for each person put him into the sea, then from the next one to start off, 9 people have been invested in the sea, followed by cycle, until the remaining 15 people so far. The question is how to row Act so that the person into the sea all infidels?)

MATLAB 在光学教学中的应用,有示例,模拟光的双缝干涉％单缝衍射和光栅衍射.(MATLAB Teaching in optical applications, there are examples of simulation of light double-slit interference single-slit diffraction and diffraction gratings.)

qam implementaiton is uploaded here for u

this is lpcc matlab code

Matlab simulink中S函数的写法,效果不错，可以仿真。(Written in Matlab simulink S function, good results can be simulated.)

非常实用的关于相像系数的程序，与大家分享，希望能在相像系数仿真上面有所帮助(Very practical program resemblance coefficient, helpful to share with you and hope simulation resemblance coefficient above)

theory of all matlab codes for basic leaners