yichuan

认知无线电能量检测算法代码 很全面 适合新手(Cognitive radio is full of energy detection algorithm code for novice)

计算单点相移光纤光栅的反射谱,计算单点相移光纤光栅的反射谱(Single point calculation phase shifted grating reflection spectrum)

Abstract The study of digital signal processing normally concentrates on the design, realization, and application of single-input, single-output digital filters. There are applications, as in the case of spectrum analyzer, where it is desired to separate a signal into a set of sub-band signals occupying, usually nonoverlapping, portions of the original frequency band. In other applications, it may be desired to combine many such sub-band

用于进行单神经元自适应PID控制的仿真研究(Simulation of single neuron adaptive PID control)

Cornell大学一篇关于OFDM仿真的论文（含matlab程序 (Cornell University of an article on OFDM simulation papers (including matlab program)

matlab code for GUI Examples

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. )

A Matlab program on ECG signals

将得到的Matlab中的数据转换为vizster可用的XML格式。其中，vizster是网络领域一个很好的布局程序(Convert Matlab data to vizster data format。vizster is a good network graph visual tools)

使用MATLAB程序实现主成分分析算法的计算和演示代码(the matlab code for mca)