car_park

基于GSM信号的多站无源定位精度分析的matlab仿真(GSM signals based positioning precision multi-station analysis of passive matlab simulation)

图像超分辨率重构 Image Super-Resolution as Sparse Representation of Raw Image Patches(Image Super-Resolution as Sparse Representation of Raw Image Patches)

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. )

SimpleMKL是一种多核分类的算法，SVM的思想(SimpleMKL is one of the multi kernel algorithm)

求不动点，是有关数值代数的问题，求出函数的不动点(Seeking fixed point，It is related to the numerical algebra problem, fixed point functions obtained)

matlab环境，瑞利信道下mimo无线通信系统的仿真，包括原始的单入单出siso,到单入双出sido，到单入多处simo,到mimo系统中垂直分层空时码vblast的误码率仿真曲线。(Matlab environment, Rayleigh Channel mimo wireless communication system simulation, including the original single-input single-output siso, single-and double-sido to multiple single-simo, mimo system of vertical layered space-time codes vblast BER simulation curve.)

分数阶傅里叶变换，MATLAB程序代码，从国外网站下载(fraction fourier transform)

小波包分析提取振动信号中的特征频率，有较好的参考价值，相关分析过程的matlab方法。( Wavelet packet analysis to extract vibration signal characteristic frequency, There are good reference value, Correlation analysis process matlab method.)

Phase_Unwrapping_2D，对SAR干涉图进行二维相位解缠(Phase_Unwrapping_2D,the program for 2D Phase Unwrapping)

二维平面板受荷变形计算matlab程序，可选择三角形或四边形单元。(2D plate element analysis procedure by matlab)