Channel-capacity-under-different-SNR

水声通信面临的最困难的问题是多途干扰,其中自多途引起接收信号的幅度衰落,互多途引起接收信号的码间干扰,再加上海洋环境的高噪声背景、低的载波频率、极为有限的带宽以及传输条件的时间—空间—频率变化特性,使得通信过程十分困难。此外，水声通信试验的成本高，难度大，也为水声通信研究带来挑战。 本软件对水声信道的仿真研究很有帮助，可以产生声线图，冲激响应，声速图等仿真文件，结合Matlab画图工具绘制图像，对水声信道的模拟仿真很有帮助。(The most difficult problem faced by underwater acoustic communication is multi-path interference, which since multipath fading caused by the magnitude of the received signal, and mutual inter-symbol interference caused by multipath signal reception, plus the marine environment of high background noise, low carrier frequency , very limited bandwidth and transmission conditions of time- space- frequency characteristic such that the communication process is very difficult. In addition, the high cost of underwater acoustic communication experiment, difficult, and challenges for the study of underwater acoustic communication. This software is useful for simulation study of underwater acoustic channel can produce sound chart, impulse response, sound velocity diagrams simulation files, combined with Matlab drawing tools to draw the image of underwater acoustic channel simulation helpful.)

说明：  本文根据异步电动机矢量控制的基本原理，基于Matlab 软件构造了按转子磁场定向的矢量控制系统的仿真模型。(According to the basic principle of vector control of asynchronous motor, the simulation model of vector control system oriented by rotor field is constructed based on the software of matlab.)

Face Find in the matlab

说明：  Matlab实验各源代码及报告,与信号与处理实验相配套(Matlab source code and reports of all experiments, and Signal Processing Experiment matched with)

用MATLAB对给定信号做短时傅里叶分析 用MATLAB对给定信号做短时傅里叶分析(Using MATLAB for a given signal the short time Fourier analysis Using MATLAB for a given signal the short time Fourier analysis)

Keogh的SAX聚集近似算法，首先采用PAA分段，然后正态化序列，在对应表上查询符号表示，这是一个很经典的时间序列表示方法(Keogh' s SAX gathered approximation algorithm, the first use PAA segment, then normal sequence, query on the corresponding symbol table indicates, this is a classic representation of the time series)

对C++语言的反思，阐述c++语言的精髓，及基于作者多年编程经验总结的体会(think the core of c++ programming language)

This is an matlab code about Amplitude Modulator Noise Very easy to understand Used in Fiber Optical Communication system

Dijkstra算法（单源最短路径）matlab代码(Dijkstra matlab code)

Performance Investigation of Isolated Wind_Diesel