HuffmanCoding_ImageCompress

墨西哥帽小波变换源程序，开发环境为Matlab(Mexican hat wavelet transform using matlab)

使用FDTD仿真光子晶体分支器的Matlab程序(FDTD simulation using Matlab program photonic crystal Branches)

说明：  老外的电机学教材，最为重要的是有相应的MAtlab代码，每一章都有，十分详细，学习电机的必备工具书，文件是在太大，此处上传chap2的源码(Foreigners motor learning materials, the most important thing is there is a corresponding MAtlab code, each chapter has a very detailed study of the motor necessary books, documents are too large to upload here chap2 source)

本手册的研究内容主要有Kalman滤波，扩展Kalman滤波，无迹Kalman滤波等，包括理论介绍和MATLAB源程序两部分。本手册所介绍的线性滤波器，主要是Kalman滤波和α-β滤波，交互多模型Kalman滤波，这些算法的应用领域主要有温度测量、自由落体，GPS导航、石油地震勘探、视频图像中的目标检测和跟踪(kalman and Application)

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)

说明：  这是语音信号处理里面的，基本谱减法，处理的效果很不错，很适合初学者研究！(This is the speech signal processing inside the basic spectral subtraction to deal with the effect of very good, very suitable for beginners study!)

这种去退化的matlab源代码,学生需要可以下载使用(This to the degradation of the matlab source code, students can download to use )

说明：  基于matlab用神经网络控制船舶航向的仿真程序(Simulation program of ship course control with neural network based on MATLAB)

说明：  实现了AM的双边带调制解调功能！！！其中函数为自编(Achieved with bilateral AM modulation and demodulation functions! ! ! Which function as self-)

本文件是一个简单的S-function来算出realtime下将信号加倍的(This document is a simple S-function to calculate double realtime signal under)