Matlab-guide

传统的短时谱估计语音增强算法通常假设语音谱分量相互独立，没有考虑语音谱分量间的相关性。针对这 一问题，该文提出一种新的基于多元Laplace分布模型的短时谱估计算法。首先，假设语音的离散余弦变换(DCT) 系数服从多元Laplace分布，以此利用谱分量间的相关性；在此基础上，利用多元随机矢量的高斯尺度混合模型表 示，推导得到语音DCT系数矢量的最小均方误差(MMSE)估计的解析表达式；并进一步推导了基于该分布模型的 语音存在概率，对最小均方误差估计子进行修正。实验结果表明，该算法在抑制背景噪声和减少语音失真等方面优 于传统的语音增强方法。(The spectral components of speech are usually assumed to be independent in traditional short-time spectrum estimation, which is not the case in practice. Tosolve this problem, a new speech enhancement algorithm with multivariate Laplace speech model is proposed in this paper. Firstly, the speech Discrete Cosine Transform (DCT) coefficients are modeled by a multivariate Laplace distribution, so the correlations between speech spectral components can be exploited. And then a Minimum-Mean-Square-Error (MMSE) estimator based on the proposed model is derived using a Gaussian scale mixture representation of random vectors. Furthermore, the speech presence uncertainty with the new model is derived to modify the MMSE estimator. Experimental results show that the developed method has better noise suppression performance and lower speech distortion compared to the traditional speech enhancement method. )

北航实习相关实验。 实验一：陀螺仪关键参数测试与分析实验、加速度计关键参数测试与分析实验 实验二：惯性测量单元安装误差系数标定实验 实验三：惯性导航综合实验 实验四：基于运动规划的惯性导航系统动态实验 实验五：惯性基组合导航及应用技术实验 惯性技术习题答案1-5 内含相应程序(BUAA practice related experiments, Containing the corresponding procedures)

说明：  维纳滤波，可以有效地滤除信号中的噪声,适应于某些工程(Wiener filtering.It can effectively filter the noise in the signal.Suitable for some projects)

声线图，找的，可以看看，比较简单，可以用一下(shengxiantu，is found by me)

油田规划数学建模的matlab程序，我自己建模写的。(Mathematical modeling of oil field matlab program, written in my own modeling.)

用MATLAB实现跳频通信的的仿真与研究内容包括论文和gold码序列(Achieve frequency hopping communication with MATLAB simulation and study includes papers and gold code sequence)

重叠保留法求两序列线性卷积，是针对循环卷积代替线性卷积算法中由于时间不足造成的算法太大的缺陷(Overlapping seeking linear convolution of two sequences is a place for the circular convolution linear convolution algorithm, the algorithm because of the time caused much less defects)

说明：  自适应滤波某个程序，对于初学DBF者有帮助(An adaptive filtering procedure useful for beginners who DBF)

说明：  图像变换关于离散余炫域数字水印技术的相关程序欢迎下载(Image Transform on the discrete domain I Xuan digital watermarking technology related procedures welcome to download)

说明：  曲线拟合向导 ( Matlab 程序 )(Curve Fitting Wizard (Matlab procedure))