question1

说明：  小波变换的模极大值判断冲击函数、阶跃函数、三角形函数的奇异性(Wavelet transform modulus maxima to determine the impact of function,step function, the singularity of the triangle function)

matlab 梯形法 求数值积分 配有图(matlab trapezoidal method for the numerical integration with a map)

Three phase curretn loop invereter

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. )

基于vs+MATLAB的icp基本演算法(Based on the icp vs+ MATLAB basic algorithm)

1、对给出的数字0、1序列进行BPSK调制,调制成正负极性，并进行傅里叶变换. 2、滚将升余弦窗设计(1、making BPSK modulation for given 0、1 data serial.And make FFT change. 2、Raised-cosine window)

一种新型的智能控制器，分为定值控制和伺服控制两种情况，通过与PID控制的比较可以发现此新型智能控制器的优点。(A new type of intelligent controllers, will be divided into control and servo control value both cases, by comparison with the PID control can be found in this new type of intelligent controller advantages.)

说明：  matlab地震数据处理软件 应用于地震地球物理(matlab seismic data processing software used in seismic geophysics)

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通信系统中，无线通信物理层的epsk调制解调技术(Communication systems, wireless communications physical layer modulation and demodulation technology epsk)