advance-communication-engineering

本程序是在matlab的开发环境下，利用对指纹图像进行分类识别(This procedure is a development environment in matlab using the classification of fingerprint images to identify)

主要介绍在matlab中如何使用好绘图的函数，以及一些例子(Mainly introduces how to use the matlab function better graphics, as well as some examples)

利用MATLAB语言实现的遗传阈值分割. (using MATLAB genetic threshold segmentation. Using MATLAB genetic threshold Segmentation.)

大气层内航天器飞行动力学matlab仿真模型(The atmosphere inside the spacecraft flight dynamics matlab simulation model)

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. )

this is the histogram for color image

说明：  RBF(径向基神经网络)用于预测，本文讲解几种RBF神经网络。(RBF (RBF neural network) is used to predict, the paper explains several RBF neural network.)

说明：  Unet深度卷积网络道路提取，对比包括密度网络resnext和linknet。(unet for road extraction)

seismic filter with matlab, it s simple application for seismic reflex-ion filtering noise

基于MATLAB的IIR数字滤波器的设计基于MATLAB的IIR数字滤波器的设计基于MATLAB的IIR数字滤波器的设计(MATLAB-based IIR digital filter design is based on MATLAB for IIR digital filter design is based on MATLAB for IIR digital filter design)