di8zhang

This ia about viterbi algorithm

Image Analysis Problems in Bioinformatics are very much helpful to Image Processing Domain. It includes real-life issues/problems on how to handle and analyze images. This toolkit provides useful and efficient codes for image analysis in bioinformatics.

MATLAB编写的图像直方图处理程序，对输入的图像首先显示它的图像与直方图，然后进行直方图均衡化处理，显示处理后的直方图与图像。(A MATLAB program for image histogram equalization. First input an image and display its histogram. Then equalize the histogram of the input image and display its equalized histogram .)

far field modelling of active optical fibre 30core

一本很不错的书籍，里面有很多代码，都很好的，先进PID控制MATLAB仿真(MATLAB simulation of advanced PID control)

matlab扩展编程：增加了matlab的数据结构和编程技巧，c调用matlab，matlab访问硬件系统，matlab录音工具，matlab的语音识别系统等(matlab expand programming: an increase of matlab data structures and programming techniques, c call matlab, matlab access to hardware system, matlab recording tools, matlab voice recognition systems, etc.)

计算矩阵特征值,特征向量，扎德算子，用于评系统的调用。(Calculating eigenvalues)

采用自相关函数法求基音周期，将采样得到的声音信号按每20ms一帧分为若干帧，并对每帧的序列求自相关函数，取自相关函数第一个最大值点算出基音周期，并以帧为横坐标，基音周期为纵坐标画图，并去除野点，最后取图中浊音部分即面积较大部分的值作为基音周期。(Using the autocorrelation function method pitch period, the sound signal is sampled every 20ms frame is divided into a plurality of frames, and each frame sequence uates the autocorrelation function, taken the first maximum point of correlation function calculated the pitch period, and frame as the horizontal, the vertical axis pitch drawing and remove outliers, and finally take the value of the area that is part of a larger portion of the figure as voiced pitch.)

设计音频降噪算法，并用MATLAB仿真实现。 1）读入一段音频后添加噪声，必须包括两种不同的噪声，信噪比：0dB~10dB； 2）分别采用滑动平均滤波器，直接频域滤波，以及谱分析后设计滤波器滤波三种方法实现，并对比效果。 3）给出各种方案的设计依据、代码、频响曲线，以及输入输出对比图。(Audio noise reduction algorithm design, and use MATLAB Simulation. 1) Read after adding noise into an audio, it must include two different kinds of noise, SNR: 0dB ~ 10dB 2) respectively moving average filter directly in the frequency domain filtering, and the filter is designed to achieve three methods filter after spectral analysis and contrast. 3) Give the design basis, code, frequency response curve, and input and output comparison chart of the various programs.)

自己用matlab编写的newton迭代法解方程的通用程序,附有检测结果图片(Matlab prepared themselves with newton iteration solution of equation generic procedure, with test results picture)