nnet_basics

matlab中用于信号处理的工具箱，可添加到其toolbox中，并在Matlab中设置路径，便可以在Matlab中调用。(used matlab signal processing toolbox, can add to their toolbox, and set in the Matlab path, they can call in Matlab.)

本文首先概述了预编码技术的发展历史、基本原理和研究意义。重点介绍了预编码技术在LTE及LTE-A系统中的应用，最后对预编码技术的发展趋势做出预测及综合评论。(This paper outlines the history of pre-coding technology, the basic principles and significance. Focuses on the pre-coding technology in LTE and LTE-A system, and finally to make predictions and comprehensive review on the development trend of the pre-coding technology.)

检测概率PD与输入信噪比r的关系（理论曲线） 采样点数：N=100；噪声方差：sigma^2=1 ( Probability of detection PD relationship with the input signal to noise ratio of r (theoretical curves) sampling points: N = 100 noise variance: sigma ^ 2 = 1 )

采用最小二乘算法，设计线性麦克风阵列固定波束形成器(design fixed beamformer of linear micphone array by using Least-Square(LS) algorithm)

介绍神经网络参数的优化，对出入参数优化的人提供帮助(Describes the optimization of neural network parameters, optimization of access to help people)

采用卡尔曼滤波器滤除语音信号中的有色噪声，采用Matlab实现，并给出了实例(Kalman filter to filter the speech signal colored noise, using Matlab to achieve, and gives an example)

说明：  给大家上传一个关于matlab的数学建模实例，同是还有一些编程教程(For everyone to upload on the mathematical modeling matlab examples, the same there are some programming tutorials)

说明：  本程序用matlab生成白噪声，并且基于一个离散线性随机系统的模型生成了y(k)和x(k)，绘制出了x(k|k-1)和x(k)的对比曲线，求出了提前一步预报的误差协方差阵的稳定值(the procedures used Matlab generate white noise, and on a discrete linear stochastic systems model generated y (k) and x (k), mapping out the x (k | k-1) and x (k) contrast curves, get a step ahead forecasting error covariance matrix of stable value)

说明：  一组完整的带注册程序的C#原代码，是基于C语言编写的(A complete set of registration procedures with the C# source code, is based on the C language)

Standard PSO 2011 Particle Swarm Optimization with Bench Mark functions