pdmin_dp7uy8

实现SC-FDMA系统的性能仿真，即单载波OFDM(realize SC-FDMA system，for example SC-OFDM)

说明：  此程序是用matlab编写的FIR低通滤波器，为了区别于别人上传的都是调用了滤波器的现成函数filter，我自己用双重for循环编写了整个滤波过程，仿真已经通过……(This program is written in matlab lowpass FIR filter, in order to distinguish it from other people upload are ready-made function of the filter is called filter, for my own use a double for loop to prepare the entire filtering process, the simulation has passed ... ...)

用复化梯形公式、复化Simpaon公式、复化Gauss-legendre公式计算定积分的例子(Trapezoid formula with complex, complex of Simpaon formula, complex formula of Gauss-legendre example of the definite integral)

说明：  matlab仿真估计多普勒中心频率，通过图像偏移法，(estimation of doppler center)

主成分分析 还不错的程序 有需要的可以试试(pca for zhe value)

实用化工计算机模拟书上对应例题的源程序代码(Practical Chemical Computer simulation corresponds to the book' s source code in Example)

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. )

用PEG构造法生成LDPC监督矩阵的程序(With PEG construction method to generate LDPC matrix program oversight)

粒子群优化的kriging近似建模程序包DACE-PSO，matlab程序，比传统的dace程序设置更少的参数(PSO kriging approximation modeling package DACE-PSO, matlab program package than traditional dace advantage: without determining Sigma parametersdetermine the Sigma parameters)

4.面阵中二维角度估计 Unitary -ESPRIT算法MATLAB程序(MATLAB Unitary-ESPRIT algorithm)