xldq

using gamut mapping to analysis colour

随机振动的功率谱分析，其中的程序对于理解随机振动非常有帮助，希望大家下载学习(Random vibration is very useful,this file is help for the random vibration.)

说明：  多尺度样本熵程序，实例中用于一段轴承故障数据，简单易懂。MultiscalePermutationEntropy函数中的PermutationEntropy也可以单独拎出来计算单个样本熵。(The multi-scale sample entropy program, which is used for a section of bearing fault data in an example, is simple and easy to understand. The permutationentropy in the multiscale permutationentropy function can also be carried out separately to calculate the entropy of a single sample.)

10年数模赛题alpha、beta角求法，利用最小二乘法求解(10 model years of the contest problems alpha, beta angle Method, using the least squares method)

讲述了完整的OFDM仿真系统，对初学者很有帮助(About a complete OFDM simulation system very helpful for beginners)

This work is done by someone else. I m only uploading it to share with you.

matlab code to remove background (assuming black as background)

说明：  程序为了设置自定义的天线阵列模式，仿真了各种阵列形式的性能(Procedures in order to set up a custom antenna array model, simulation of various forms of performance arrays)

this code extract dense samples for human action recognition

在matlab环境下，使用PQ分解法进行的电力系统潮流计算程序。(In the matlab environment, using PQ decomposition method for power flow calculation program.)