LFM_signal_simulation

说明：  本文在DCT噪声信号模型研究的基础上,提出了一种新的音频水印嵌入位置选择策略和一个应用该策略的自适应音频水印算法. 通过定义DCT系数的噪声敏感度,建立了水印嵌入位置和嵌入水印后的音频信号的听觉感知性之间的关系,根据音频水印的不可听性的要求选择最优的嵌入位置,然后调节水印强度来满足鲁棒性的要求,从而最大程度地保持音频水 印的不可听性和鲁棒性,为解决音频水印嵌入过程中不可听性和鲁棒性之间的矛盾提供了一种策略.(Though m any w orks in the literature agree that w aterm ark should be em bedded in the middle2fre2 quency coefficients or percep tually significant components, how to determ ine the position em bedded has no universal definition. A new em bedding strategy and an algorithm app lying the strategy are p roposed for audio w aterm arking in DCT dom ain based on research of DCT noise m odal. B y defining a noise sensitivity vector, a m ath relationship betw een the w aterm ark em beddable position and the audible quality of the audio file w ith w aterm ark is set up.)

对基于四阶累积量的MUSCI算法进行去冗余，把多余的冗余数据剔除，在保持良好分辨率的基础上也降低了运算复杂度。(Fourth-order cumulant-based algorithm to the MUSCI redundant, removed the extra redundant data, while maintaining good resolution also reduced on the basis of computational complexity.)

该源代码程序是关于张德丰所编写matlab小波分析的第五和六章(the sourcecodes are match with the book named matlab wavelet analysis by Zhang Defeng)

采用matlab语言，但不是采用其神经网络工具箱开发的BP人工神经网络程序，原始底层代码，对于想利用其它语言开发商业软件的网友可先学习本代码，然后可方便转写。(Using matlab language, but not using its neural network toolbox developed by BP artificial neural network program, the original low-level code, use of other languages who want to develop commercial software, users can first learn the code, and then can be easily transferred to write.)

OMP算法在压缩传感中的应用，这是一个m文件。(Orthogonal Matching Pursuit Algorithm for Compressive Sensing)

大学实验，matlab 信息论与编码，信道容量计算，数字信号处理初级课程。(University of experiments, matlab information theory and coding, channel capacity, digital signal processing primary curriculum.)

source code for split and merge of image

说明：  matlab中文帮助文档，方便读者理解阅读matlab，一般的安装软件中的帮助文档是英文的，使用不方便(matlab Chinese help docment, support read convience and help you understand clearly )

说明：  Lung Sigmentation. PIG Method.

离散函数matlab基本用法卷积与循环卷积描述及连续信号幅度谱包络(Discrete convolution function matlab basic usage and circular convolution description and continuous signal amplitude spectral envelope)