2011.11.20

在matlab下仿真计算光纤的色散和自相位调制特性(Simulation of fiber dispersion and self-phase modulation characteristics)

说明：  用双线性变换法设计一个Butterworth低通滤波器，要求其通带截止频率100Hz，阻带截止频率200Hz，通带衰减小于2dB，阻带衰减大于15 dB，采样频率为500 Hz。(Using bilinear transformation to design a Butterworth low-pass filter, requiring that their pass-band cutoff frequency 100Hz, stopband cutoff frequency 200Hz, pass-band attenuation is less than 2dB, stop-band attenuation greater than 15 dB, a sampling frequency of 500 Hz.)

在瑞利信道下的，时延估计算法，进行的简单仿真，可执行，有图。(Under the Rayleigh channel, the delay estimation algorithm for a simple simulation, executable, Fig.)

伪谱法地震波数值模拟,通过伪谱法对弹性波进行正演模拟(pseudo-spectral method seismic wave simulation)

(2). 采用汉明窗，分段长度L=32，用修正的周期图法进行谱估计，并分析数据长度N，分段长度M对谱估计结果的影响。((2) using Hamming window, segment length L = 32, the modified periodogram method of spectral estimation and analysis of data length N, the length M of the sub-spectrum estimation results.)

基于SimMechanics的刚体系统建模(SimMechanics modeling)

MATLAB环境下开发的混沌理论的工具箱，包含各种实例，学习混沌理论的好帮手(Chaos theory toolbox, matlab )

自己写的经典Rls算法，含有丰富的程序说明(Write your own classic Rls algorithm, rich description of the procedures)

Matlab编写的PSO算法，非常好，直接可用(PSO algorithm written in Matlab, very good, directly available)

This Source Code for Image Segmentation and applying the threshold at image