Abstract

瑞利衰落信道（Rayleigh fading channel）是一种无线电信号传播环境的统计模型。这种模型假设信号通过无线信道之后，其信号幅度是随机的，即“衰落”，并且其包络服从瑞利分布。(Rayleigh fading channel (Rayleigh fading channel) is a radio signal propagation environment, the statistical model. The model assumed that after the signal through the wireless channel, the signal amplitude is random, that is, " fading" and subject to its Rayleigh distribution envelope.)

Fourier Series example in Advanced Mathmatic for Engineer with matlab

Query By Humming System In Matlab

提出了结构半随机LDPC码的编码协同方案，并对该方案在不同的源到中继信道特性下 的误比特性能进行了仿真评价，结果显示该协同方案在不增加传送和接收功率的情况下，能够提供 更好的性能。(Structure of semi-random LDPC codes coded cooperative programs, and of the program in different source to relay channel characteristics, bit error performance simulation evaluation results show that the synergistic programs without increasing the transmit and receive power able to provide better performance.)

说明：  对经典LEACH算法中的簇头选举概率加以改进，更进一步提升了性能(The classical LEACH cluster head election algorithm in the probability to be improved, further improving performance)

a MATLAB program to find all the prime numbers between and including two given/input numbers.

matlab因子分析的几个例程 包括：基于协方差矩阵或相关矩阵系数矩阵的因子分析 ，与基于样本观测值矩阵的因子分析(matlab factor analysis of several routines include: factor covariance matrix or correlation matrix coefficient matrix-based analysis, and factor sample observations Matrix Analysis)

说明：  用于提取chebeshev滤波器的传输零点的一个小程序(Chebeshev filter for extracting a small program transmission zeros)

应用KNN算法解决0到9的手写数字识别问题，效果在90 以上，内部有两个数据集，一个为训练集（7291个数据），一个为测试数据（2791个数据），程序采用MATLAB编写，另附有文档，程序简洁易懂(Application KNN algorithm to solve 0-9 handwritten digit recognition problem, the effect is more than 90 , the inside has two data sets, one for the training set (7291 data), a test data (2791 data), the program written using MATLAB , attached a document, the program is simple and easy to understand)

标准大气模型，使用，matlab编写，可用于航空航天等相关领域(The model of the standard atmosphere)