audiowatermark

基于MATLAB平台实现利用FFT计算线性卷积(MATLAB-based platform for the realization of the linear convolution calculation using FFT)

Test if two matrices have the same column space

地震数据读取程序，matlab编写，可以实现segy格式的读取(to read Seismic data of segy format ，Matlab。)

基于matlab环境下的自相关函数的周期图功率谱密度(Based on the power spectral density of the autocorrelation function of the periodogram in Matlab environment)

MIMO-OFDM系统的MATLAB仿真源文件 相信对学习无线通信技术的人很有帮助(simulation for MIMO-OFDM system )

该工具包是最新版本的copula工具厢。可实现copula建模，并有copula函数可选择。((The toolkit is the latest version of the pair copula toolkit. The copula modeling of high dimensional data can be realized, and sometimes the copula function can be selected.))

这是一个求平面图形覆盖面积的算法，算法简单，很好理解(This is a plane graphics coverage area of ​ ​ the algorithm, the algorithm is simple and well understood)

光伏并网逆变器的PQ-V控制模型，为毕业设计的建模，供相关领域的中高级同任学习参考(PQ-V control model of photovoltaic grid connected inverter for graduation design modeling, for reference in the related fields of middle and advanced learning reference)

说明：  利用中值滤波和小波相结合的方式，去除信号中含有的随机噪声和脉冲噪声(The method of combining median filter with wavelet is used to remove the random noise and impulse noise in the signal)

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.)