psd_estimation

基于遗传算法BP神经网络优化的DIP控制(BP neural network based on genetic algorithm optimization DIP control)

matlab功能强大，可以编程实现音乐播放，在此以歌曲《要有音乐基础贵妃醉酒》为例，不过编程人员(matlab powerful music player can be programmed to achieve this to the song " Let there be music foundation Drunken Beauty" as an example, but the programming staff)

Hilbert_huang 变换，计算经验模态函数，求瞬时频率(Hilbert_huang transform to calculate the empirical mode function, find the instantaneous frequency)

After identifying the best MNT− 1 nodes with the simplified branch metric and the accumulated branch metric at stage NT − 1, we then calculate the LLR of each coded bit utilizing the standard squared Euclidian distance metric. The log-likelihood ratio (LLR) of a posteriori probability (APP) of each coded bit conditioned on the received signal y is normally calculated using the max-log approximation.

This code is used for patch test of plain strain in FEM.

说明：  matlab中常见txt文件读入的实用方法 (matlab common txt file into a practical method)

线性方程组的数值解法，包括高斯列主元消去法 ,Jacobi迭代法,Gauss--Saidel迭代法,超松弛迭代法(The numerical solution of linear equations, including gaussian pca elimination method, Jacobi iteration method, Gauss- Saidel iteration method, overrelaxation iteration method)

给出一组数据后，将数据依次读取，然后完成复杂的计算公式(Given a set of data, the data is read in turn, and then complete the complex formula)

Read video into MATLAB using aviread and alculate the background image . Initialization for Kalman Filtering. Calculate the difference image to extract pixels with more thanthreshold change. and Plot the tracking rectangle after Kalman filtering

此程序是ofdm的一个仿真程序，通过发送端是一个声音文件或者图片文件来对ofdm系统进行仿真(This procedure are OFDM, a simulation program, by sending a client is a sound file or picture file to the simulation of the OFDM system)