iwo

solving heat problem by FEM

MATLAB语音滤波，使用MATLAB仿真模拟滤波器对语音信号进行滤波(MATLAB voice filtering, use the MATLAB simulation filter to filter the speech signal)

time-invariant degradation models and stationary signals and noise, the classical Fourier domain Wiener filter, which can be implemented in O(N logN) time, gives the minimum mean-square-error estimate of the original undistorted signal. For time-varying degradations and nonstationary processes, however, the optimal linear estimate requires O(N2) time for implementation. We consider filtering in fractional Fourier domains, which enables significant reduction of the error compared with ordinary Fourier domain filtering for certain types of degradation and noise (especially of chirped nature), while requiring only O(N logN) implementation time. Thus, improved performance is achieved at no additional cost. Expressions for the optimal filter functions in fractional domains are derived, and several illustrative examples are given in which significant reduction of the error (by a factor of 50) is obtained.

本书系统地介绍MATLAB 7.0的混合编程方法和技巧。本书既适合初学者自学，也适用于高级MATLAB用户，可作为高等数学、计算机、电子工程、数值分析、信息工程等课程的教学参考书，也可供上述领域的科研工作者参考。(This book systematically introduces MATLAB 7.0 mix of programming methods and techniques. This book not only suitable for beginners self-learning, also applies to high-level MATLAB users, can be used as advanced mathematics, computer, electronic engineering, numerical analysis, information engineering curriculum reference books are also available in these areas of research workers.)

matlab小波包工具箱的使用来分析信号，实现了一维去噪声的功能，恢复出了原始信号(wavelet packet Matlab toolbox used to analyze signals and realized the noise to a peacekeeping function, restoration of the original signal out)

非常适合初学者的的matlab通信原理入门书，很多学校都用这个做教材！(Matlab Communication Theory Primer is ideal for beginners, many schools have done with this material!)

连续信号经理想采样前后的频谱变化关系的程序分析(Spectrum analysis program managers want to change the relationship between the continuous signal is sampled before and after)

Random numbers in a given range. Prints N numbers between lo and hi.

说明：  瑞利衰落信道matlab仿真，代码很全面，希望对大家有用(Matlab simulation of Rayleigh fading channels, code is full, we want to be useful)

Matlab实现蚁群寻找最短路径的TSP问题，有图像描述。(Matlab to find the shortest path to achieve ant TSP problem, there is the image description.)