Q_-matrix--LDPC-code

语音水印算法的matlab 编程实现，毕业设计，基于小波，到谱分析(Audio Watermarking Techniques implemented by the MATLAB PROGRAMMING)

this code first reads an image and decomposed it in discrete wavelet transformation.hl1 and hl2 are extracted to embed watermark. watermark is added to hl1 and lh1 and inverse dwt is applied.

说明：  一种基于最小类间距的半监督聚类算法，内含注释和测试数据集(a Semi-supervised clustering algorithm based on Single linkage clustering)

图象处理Gabor.对Gabor的原理，参数设置以及滤波后的效果进行了说明(Image processing Gabor. The principle of Gabor, parameter setting and the effect after filtering)

Dreamweaver_CS5官方教程,帮助您快速掌握相关知识，好用(Dreamweaver_CS5 official tutorial to help you quickly master the relevant knowledge, easy to use)

This project consists of two back to back pwm converters used for simulation of traction load in normal operating mode. The first side is connected to a single phase network and uses hysteresis current control. The second side is connected to a three phase network and uses space vector modulation for controlling its inverter.

Dufing方程是一种重要的动力系统山，是反映工程物理系统中非线性现象和混沌动力学行为的极其重要的方程式。通过Duffing方程可以探讨铁磁谐振电路中的分岔、拟周期运动、子谐波振荡。而在非线性与混沌系统的研究中，Duffing方程展示了丰富的混沌动力学行为。本文通过对不同情况下的Duffing方程进行分析，利用MATLAB进行仿真，从而对Duffing方程有进一步的了解。(Dufing equation is an important dynamic system mountain, which reflects the nonlinear phenomena and chaotic dynamics in Engineering Physics system. The bifurcation, quasi periodic motion and sub harmonic oscillation in ferromagnetic resonance circuit can be discussed through the Duffing equation. In the study of nonlinear and chaotic systems, the Duffing equation shows abundant chaotic dynamical behavior. In this paper, the Duffing equation under different conditions is analyzed and simulated with MATLAB, so as to have a further understanding of the Duffing equation.)

代码给出了基于混合门限带迭代步长的稀疏图像重构。特别地，压缩采样矩阵为抽样傅里叶变换矩阵，利用2D-FFT,大大降低了计算复杂度。(The mixedthreshold sparse image reconstruction with step is given in the package. In particular， the 2D-FFT is used to disign the sample matrix, which can reduce the computational compexity dramatically. )

说明：  生成复杂网络之BA无尺度网络，有详尽的原理描述和参数说明。(BA generate complex networks of scale-free networks, there is a detailed description of the principles and parameters.)

A transient sstability simulation of a single synchronous machine connected to an infinite bus.