simulate_QPSK

用MATLAB编写的蚁群算法最短路径寻找程序，压缩包内包含了网络结点坐标。(The preparation of the ant colony algorithm using MATLAB to find the shortest path procedure, compressed package that contains a network node coordinates.)

说明：  极限学习机ELM对特征值进行分类并对分类结果画图，属于有监督学习，可运行(Extreme Learning Machine ELM classifies eigenvalues and draws classification results. It belongs to supervised learning and can be operated.)

说明：  一阶RC低通滤波，MATLAB仿真分别实现一阶RC低通和高通滤波器，输入信号为正弦信号或者方波信号。 注意截止频率为f = 1/(2*pi*R*C)(The first-order RC low-pass filter and the MATLAB simulation realize the first-order RC low-pass filter and the high-pass filter respectively. The input signal is sinusoidal signal or square wave signal. Note that the cutoff frequency is f = 1 / (2 * pi * r * c))

说明：  对舰载 HFSWR（高频地波雷达）的阵列误差进行数学建模，通过 MATLAB 仿真来分析阵列误差对两种阵列信号处理算法的影响，并在此基础上以幅相误差为例研究了误差校正算法。(Construct the mathematical modeling of array error, and to analyze the influence of array error on the array signal processing algorithm. Based on this, the error calibration algorithm is studied by taking the amplitude and phase error as an example)

QPSK调制下的蒙特-卡罗仿真主函数源程序()

说明：  4098QAM编码在AWGN信道下误码率性能与Eb/N0（信噪比）的关系(The performance of 4096QAM at AWGN channel: BER~Eb/N0)

addaptive decision directed quantize algorithm

说明：  大气激光通信湍流效应分析与仿真 介绍了湍流介质中波传播的解析方法以及常用湍流功率谱模型，基于高斯光束在水平传输条件下的传播特性和闪烁(In this paper, statistical characteristics and formation of atmospheric turbulence is described, analytical methods and the turbulence power spectrum models for optical wave propagation through random medium are also introduced.)

本程序利用功率谱反演相位屏方法实现大气湍流数值模拟。(This program achieves atmospheric turbulence numerical simulation by using the spectrum inversion phase screen method.)

读取.hdr文件，将其编码为rgbm格式（.png四通道）(convert from hdr to rgbm)