zhudongduan

说明：  经典书籍 剑桥大学大学出版社： 无线通信基础(Book Description: The past decade has seen many advances in physical layer wireless communication theory and their implementation in wireless systems. This textbook takes a unified view of the fundamentals of wireless communication and explains the web of concepts underpinning these advances at a level accessible to an audience with a basic background in probability and digital communication. Topics covered include MIMO (multi-input, multi-output) communication, space-time coding, opportunistic communication, OFDM and CDMA. The concepts are illustrated using many examples from real wireless systems such as GSM, IS-95 (CDMA), IS-856 (1 x EV-DO), Flash OFDM and UWB (ultra-wideband). Particular emphasis is placed on the interplay between concepts and their implementation in real systems. An abundant supply of exercises and figures reinforce the material in the text. This book is intended for use on graduate courses in electrical and computer engineering and will also be of great interes)

DFT变换matlab代码，fft变换matlab代码,iir变换matlab代码,经过运行检验正确(DFT fft iir matlab)

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. )

改程序的功能：基于IMAGE混响模型编写的混响估计程序，条件实在矩形的房子中进行的(Change program features: based on IMAGE reverberation model reverberation estimation program written, just rectangular house)

说明：  Jacobi迭代法和SOR方法求解线性方程组(Jacobi iterative method and the SOR method for solving linear equations)

该压缩包为matlab语言的常用算法程序集(The archive is commonly used algorithm matlab assembly language)

图像在matlab中的基本操作,包括图像亮度变换,图像格式变换以及图像的数据类型变化(Images in MATLABs basic operations,including image brightness transform,image format transformation, and image data type changes)

Current mode signal processing

求解poisson方程的经典有限元程序！(a classical fem program for poisson equation)

利用pcnn脉冲耦合神经网络进行图象滤波,利用pcnn定位图象噪声,根据定位情况进行滤波,输出(Using pulse coupled neural network PCNN for image filtering, image noise using PCNN positioning, according to location to conduct filtering, output)