ex3_20

古气候分析，利用matlab分析古气候数据，提取特征值( climate change research)

基于matlab的并网逆变仿真器，可以动态仿真(Matlab-based grid inverter emulator can dynamic simulation)

About simulation of turbo encoder. Using matlab code

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.

说明：  现代通信系统(matlab版本)第二版，第八个例题的程序。(Modern communication systems (matlab version) second edition, the eighth Example program.)

EMD处理及处理结果的显示 完整 直接处理即可(EMD treatment and treatment results display can be integrated directly with)

有限元剖分三角形剖分程序，还有加密程序，可用于求解有限元问题(use to salve fem)

user_manual for matlab simulink toolbox dsPIC microcontrollers

this is a basic pso algorithm in matlab platform,which will help beginer.(pso algorithm is very popular in recent years , hope this example will help you)

this file is sued to compute the fourier transform of a given optical signal