mlclass-ex1

说明：  平方载波同步法的MATLAB实现 锁相环部分的仿真程序 结果正确 可以直接使用(PLLC.M)

matlab解数独（包含文档）By Cleve Moler, MATLAB发明人(solve sudoku with matlab (document included) By Cleve Moler, inventor of matlab)

This is a program to study the dynamic instability of cylindrical shell due to parametric excitation.

Description: Matlab examples for a seminar in stochastic simulation: http://www.math.uu.se/~ikaj/courses/matlab/ ############### Installation: After decompressing, run stsimpath.m in the main directory. Alternatively, you may add to your startup.m: addpath( path_to_stsimbm , ... path_to_stsimcounting , ... path_to_stsim anvar , ... path_to_stsim tree, ... path_to_stsimservice , ... path_to_stsimstproc , ... path_to_stsim eletraffic , ... path_to_stsimwaxman ) Any suggestions or comments are welcome.

A Guide to Steady-State Voltage Stability Analysis

ISOMAP算法，其中做了部分修改。算法采用K近邻图计算测地距离的方法，最后进行低维嵌入(ISOMAP algorithm, which made some modification.Algorithm of geodesic distance is obtained by using the K neighbor graph method, finally to low dimensional embedding)

产生伪随机二维码,使用的是Matlab中的Simulink，应该很好用的，用于系统辨识(PEBS generator)

说明：  通过时域转换为频域，在频域中截取低频部分，去掉高频部分将结果再转换到时域以实现低通滤波的功能。(Through the time domain is converted to frequency domain, in the frequency domain low-frequency part of the interception, to remove high-frequency part of the results and then switch to the time domain in order to achieve low-pass filter function.)

正交频分复用(OFDM)技术是一种可以有效对抗符号间干扰(ISI)的高速数据传输技术。OFDM是一种特殊的多载波调制方式，它的基本思想是将高速传输的数据流通过串/并转换，变成在若干个正交的窄带子信道上并行传输的低速数据流。OFDM接收机有三个关键技术：信道估计技术，降低峰均比(PAPR)技术和同步技术。OFDM技术能有效的对抗多径衰落等，有着诸多的优点，但是OFDM有一个发展瓶颈，即OFDM信号的峰均功率比很大，很容易导致OFDM信号的交调失真和系统性能的下降。因而如何降低OFDM信号的峰均功率比一直是OFDM技术的一个研究热点问题。论文针对上述问题，重点研究了降低OFDM信号的峰均功率比的SLM与PTS算法，并利用Matlab对算法进行了仿真研究，并对仿真结果进行了分析。(Orthogonal frequency division multiplexing (OFDM) is a high-speed data transmission technology that can effectively combat inter-symbol interference (ISI). OFDM is a special multi-carrier modulation method, its basic idea is to high-speed transmission of data stream through the serial/parallel conversion, in a number of orthogonal narrowband sub-channel parallel transmission of low-speed data stream. OFDM receivers have three key technologies: channel estimation techniques, reduced peak-to-average ratio (PAPR) techniques and synchronization techniques. OFDM technology can effectively combat multipath fading, etc., there are many advantages, but OFDM has a bottleneck in development, that is, OFDM signal peak power ratio is large, it is easy to lead to OFDM signal intermodulation distortion and system performance degradation. Therefore, how to reduce the peak-to-average power ratio of OFDM signal has been a hot topic in OFDM technology. In this paper, the SLM and PTS algorithms for reduc)

MATLAB 程式设计与应用(Design and Application of MATLAB programs)