qpskd

FDTD for Wave equation3

说明：  matlab写的扫雷小游戏,有兴趣的可以试玩一下。(matlab write mine game, are interested in you can try.)

说明：  matlab的源码工具箱，一些函数的M文件(matlab source toolbox, some functions of the M-file)

通信系统的方针，用matlab编写，qpsk(communication system simulation by matlab,qpsk)

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.)

说明：  该算法连续系统的积分分离式PID算法,用MATlab开发，能够管直接运行,当控制量与设定值偏差较大时，取消积分作用，以免积分作用过大引起系统的稳定性降低。(The algorithm of the integral continuous system separate PID algorithm, developed using Matlab and can directly run the tube, when the control volume and settings deviation is larger, the abolition of integral action, so as not to cause too large integral role in the stability of the system lower.)

说明：  这是一个用Matlab编写的提取图像轮廓并且标示出图像中拐点的例子，输出拐点的坐标。(This is an extract prepared using Matlab image contours and marked a corner in the example image, the output coordinates of corner.)

说明：  用matlab实现匀速模型下的卡尔曼滤波器功能的源代码(Constant velocity model Kalman filter simulation)

Very Simple Volume Rendering

基于Hilbert_Huang变换的基音周期提取方法(basic-speech drawing based on Hilbert_Huang)