speech-processing

关于水轮机主轴系统振动的有限元计算程序，用matlab编写(Finite element program)

核磁共振地下水探测反演软件,模拟退火法,最小二乘法(MRI detection of groundwater inversion software, simulated annealing method, least-squares method)

说明：  4进制PSK仿真子程序,子程序计算4进制PSK调制的误码率(four band PSK simulation subroutine, the four band calculation subroutine PSK modulation BER)

对于点检测分析和算例,方便大家学习和使用.(For point detection analysis and examples to facilitate them to learn and use.)

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.)

this is some code for modulation and demodulation

模拟离轴彩色数字全息图的MATLAB程序(MATLAB program of simulated off axis color digital hologram)

MIMO OFDM matlab仿真,有循环检测，周期性检测，利用matlab GUI实现的串口编程例子。( MIMO OFDM matlab simulation, There are cycle detection, periodic testing, Use serial programming examples matlab GUI implementation.)

模糊自适应PID控制的报告，后面带简单的程序，可以运行，就是抄的部分刘金琨的程序。不懂图的含义可以参考刘金琨的先进PID控制MATLAB仿真。(It s a simple report and simple simulink program about the Fuzzy-PID.)

相位法峰平比降低技术,包括NEWMAN法和优化法,给出了降低之后的结果.(Phase-based method PAPR reduction techniques, including NEWMAN method and optimization method is given to reduce after the results.)