shiyanchengxufangzhen

语音信号处理实基于MATLAB的语音信号时域特征分析 要求： 按所学相关语音处理得的知识，通过网上学习、资料查阅，自己设计程序，给出某一语音信号的短时过零率、短时能量、短时自相关特征的分析结果，并借助时域分析方法检测所分析语音信号的基音周期(yu yin xin hao chu li)

说明：  ldpc相关，涉及ldpc编码、和积译码(LDPC related, involving LDPC coding and sum product decoding)

说明：  摄像机标定经典标定法—— 张正友平面标定法(Zhang camera calibration plane calibration)

绘制一条与控制多边形相切的三次均匀b样条曲线。(A degree-3 uniform b spline curve, it is tangent to its control polygon.)

编写程序将含有20个数据的数组M分成两个数组：正数组P和负数组N，并分别统计两个数组的个数，显示在屏幕上。(Write a program containing the data array 20 is divided into two arrays M: positive and negative groups Array P N, and the number of two arrays statistics were displayed on the screen.)

利用传输矩阵法对相移光纤光栅的反射及透射谱进行了仿真(Phase shifted grating reflection and transmission spectra were simulated using the transfer matrix method)

用MATLAB让ASK信号产生~~~~~~~~~~~~~~~~~~~~~~~~(ASK signal using MATLAB to generate ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~)

目前比较前沿的数值渐近法（Asymptotic Numerical Method）求解弹簧平衡路径算例，直接运行可得计算结果图象。(an example of Asymptotic Numerical Method solving two-dimension spring problem)

a self- embedding block wise fragile watermarking scheme with tamper detection and content recovery capability. The proposed scheme embeds the shuffled extensive ten bit Recovery data and two bit Authentication data of the image block into the least significant bits (LSB) of its corresponding mapping block.The integrity of a test block is decided by comparing 2×2 non overlapping block of the test block with its corresponding mapping block. Experimental results show that the suggested scheme outperforms conventional self recovery fragile watermarking algorithms in alteration detection as well as in tamper recovery of the image.

Partial-Fourier Reconstruction with POCS