FastICA_2.5

MatLab code for simulation of a 4PPM communication system.

自学Matlab必备的60个小程序代码，有助于快速了解掌握Matlab.(60 small self study Matlab code .)

说明：  an investigation on use of chaotic sequence in DS-CDMA. The DS-CDMA systems offer physical layer security without the need for a significant increase in computation or power requirements. Nowadays, DSCDMA has been used widely. These systems suffers from multiple access interference because of other users transmitting in the cell, channel inter symbol interference and additive white Gaussian noise. Codes have an effective role in DSCDMA system, so M-sequences; gold sequences have been used as spreading codes in DS-CDMA. These sequences by shift registers and periodic in nature are developed. However, these sequences are not enough and also limit the security. This paper presents an investigation on use of new type of sequences called chaotic sequences for DS-CDMA system. These sequences by chaotic maps are generated.

说明：  数据快照的特征提取，获得基模态、特征值和模态系数，以及数据的后处理。(Feature extraction of data snapshot, obtaining basic modes, eigenvalues and modal coefficients, and post-processing of data.)

LMS 基本源程序，有效解决初步学习lms算法的初始难题(LMS basic source)

Code implementation of a Simple Perceptron Neural Network that learns the logical OR function with 2 and 4 inputs.

此文档收录matlab中的常用函数，方便查阅(This is a PDF file including various useful functions of matlab.)

瑞利分布的气象雷达回波，时频分析，功率谱密度，频谱分布。(Rayleigh distribution of meteorological radar echo time-frequency analysis, power spectral density, spectral distribution.)

线性调频信号短时傅里叶变换 线性调频信号短时傅里叶变换 (chirp signal stft chirp signal stft chirp signal stft)

这是一个用MATLAB做的基于矩特征的图像特征提取，值得借鉴-This is a done using MATLAB moment characteristics based on image feature extraction, is worth learning from(This is a MATLAB moment in image-based feature extraction, worth learn-this is a done using MATLAB moment characteristics based on image Feature Extraction, is worth learning from)