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该matlab代码描述了谱减的语音增强算法(The matlab code spectrum is described by the speech enhancement algorithm)

这是中国数学建模中编程交流上搜索算法内容，里面提供了很多搜索算法的例子(This is the exchange of mathematical modeling in the programming content on the search algorithm, which provides many examples of search algorithms)

matlab code for 4-ask modulation

matlab图像处理源代码 大家多多分享(matlab Image processing source code )

space vector modulation model

多尺度线调频基稀疏信号分解方法源代码，非常适用于多分量非平稳信号分解！(FM-based multi-scale line of source code for sparse signal decomposition method is very suitable for multi-component non-stationary signal decomposition!)

说明：  产生高斯白噪声，标准差和期望都固定，如N=f（0.1，2），这种形式的，随机产生40个(Generated white Gaussian noise, standard deviation and expectations are fixed, such as N = f (0.1,2), this form of randomly generated 40)

1.升余弦窗首尾8点数据值:12bit-> 1-1RAM_OUT_CNT_RN10 formal 采用移位相加的方式来取代相乘运算，节省资源。 (1 liter inclusive 8:00 cosine window data values​ ​ : 12bit-> 1-1RAM_OUT_CNT_RN10 formal using shift and add a way to replace multiplication, save resources.)

该程序是在flac下运行的，没找到flac，所以用matlab表示了，供岩土力学研究方向学习(The program is run under flac, did not find flac, so use matlab shows for rock mechanics research study)

通过给出的随机过程，该随机过程是由3个实正弦信号组成，归一化频率分别为0.1,0.25,0.27，其中相位是相互独立在【0,2*pi】上分布的随机相位；噪声是均值为0、方差为1的实高斯白噪声，信噪比为30db,30db,27db,观测样本数为N，通过bartlett法，Welch法，周期图法计算随机过程的概率谱(Given by stochastic process, the stochastic process is composed of three real sine signal, the normalized frequency were 0.1, 0.25, 0.27, including phase is independent in [0, 2* PI] on the distribution of random phase Noise variance is the mean to 0, 1 real gaussian white noise, signal to noise ratio of 30 db, 30 db, db, and the observation sample for N, by bartlett, Welch, periodogram spectrum method to calculate the probability of the random process)