laser-propagation

时频分析工具箱,需要的人可以试试,还不错(time-frequency analysis toolkit, the people can try out, quite good)

2MSK调制解调 双极性信号输入 产生简单直观的误码率图(2MSK modem Bipolar signal input to a simple and intuitive diagram of bit error rate )

基于Matlab平台开发的用于特征选择的算法，后向选择算法，主要用于提取心电生理信号的表示特定情感的特征用于降低特征维度。(Backward selection algorithm for feature selection algorithm based on Matlab platform development, mainly for extraction of ECG physiological signal represents a specific emotional characteristics used to reduce the feature dimension.)

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)

will read images from a file imagelist1 and resize all of them to the size of 320 rows and 240 column.

File is having matlab code for removing green pixel from image

math function for learning methods

这个MATLAB程序是OFDM信道的通信系统框架(The MATLAB program is the communication channel OFDM system framework)

说明：  用matlab实现DLA模型的分形形貌模拟(Using matlab to achieve DLA model simulation of the fractal morphology)

根据数据画出地形图，根据地形图拟合出函数，得到函数的参数值(this is important)