pfe-pid

编写的qpsk源程序，实现qpsk的的调制解调(Qpsk written source, to achieve qpsk of the modulation and demodulation)

16qam的OFDM调制与解调，对ofdm信号的产生过程详细介绍，包含星座图(16QAM OFDM modulation and demodulation, ofdm signal generation process is described in detail, contains the constellation of FIG.)

源码，便于初学。含105个文件，包括求JACOBI矩阵等(Source for learning. Containing 105 documents, including the matrix, such as seeking JACOBI)

说明：  高进制调制中，Gray码映射之后，收端进行的软解映射程序。解映射之后的软信息，可直接用于译码(High-band modulation, Gray code mapping, the collection side of the soft solution mapping procedure. Mapping solution after the soft information, can be directly used for decoding)

变分模态分解,用于分解各种信号，可用来故障诊断，特征提取。(Variational mode decomposition, used to decompose various signals, can be used for fault diagnosis and feature extraction.)

本程序是用五点差分格式解拉普拉斯方程，采用MATLAB作为开发环境，拉普拉斯方程有广泛的应用，五点差分格式的精度高 (This procedure is a five-point difference scheme for solution of Laplace equation, using MATLAB as a development environment, Laplace equation has a wide range of applications, a five-point difference schemes of high accuracy)

making jacobian matrix

基于栅格划分的环境中,研究了机器人路径规划问题中蚁群系统的“外激素”表示及更新方式,并将遗传算法的交叉操作结合到蚁群系统的路径寻优过程中,提高了蚁群系统的路径寻优能力,为蚁群算法的应用提供了一种新的探索。(Raster-based division of the environment, to study the issue of robot path planning in the ant colony system of )

LLL algorithm...............................

修饰的频域信道FWGN 过滤高斯白噪声（FWGN）信道模型 时域信道FWGN(a modified frequency-domain FWGN channel filtered white Gaussian noise (FWGN) channel model a time-domain FWGN channel)