cdma_coding

Viterbi Algorithm & Viterbi Decoder Matlab Code.(Provided both soft & hard decision ability). Note: The main function is viterbi.m

利用区域生长法在图像中提取出所需要的部分，本程序为车道线(Using region growing method to extract the required image portion, the procedures for the Drive Line)

对图像中的粒子的近似圆形的衍射光斑通过高斯拟合寻找粒子的实际位置(The image of the particles through the approximately circular Gaussian fitting of the diffraction spot to find the actual location of particle)

说明：  各种常见的窗函数，以及这些窗函数的时域波形和频域波形。(A variety of common window function, and their time-domain window function waveform and frequency domain waveforms.)

这是姜启源教授在清华大学讲解数学建模课程的资料，对于数学建模由入门到精通十分有用(lecture in math modeling,given by Professor JiangQiyuan )

在数值分析中，比较CG和Lanczos的计算结果.并比较了不同特征值情况下的计算结果。(in numerical value analyse, Compare the CG and Lanczos, futher more, we compare the CG and Lanczos in the different eigenvalue.)

说明：  此程序为MATLAB实现的现代信号处理中几种常用的谐波恢复方法，所附文档中还有理论及算法介绍(Pisarenko，ARMA)实验步骤及实验结果(MATLAB this procedure for the realization of modern signal processing used several methods to restore the harmonics, the accompanying documentation and algorithm theory also introduced (Pisarenko, ARMA) experimental procedures and experimental results)

研究生时的现代信号处理的作业，小波包分析提取振动信号中的特征频率，已调制信号计算其普相关密度。( Modern signal processing jobs when the graduate, Wavelet packet analysis to extract vibration signal characteristic frequency, Modulated signals to calculate its density Pu-related.)

These are MATLAB codes for implementing Chebyshev-Type 1 Bandpass and Bandstop filters.

子相干模板法，用于消除50Hz噪声信号干扰(COHERENT template method for eliminating noise 50Hz signal interference)