filter-design

说明：  DS展頻 with pn sequence(DS spread spectrum with pn sequence)

matlab弹奏歌曲生日快乐~ 这里是生日快乐钢琴版~之前编了个生日快乐，是对照网上那个坑爹的最炫民族风编的，效果就像打击乐器（因为只有一个波形）真是不忍心吐槽了。 这个是钢琴完美版的，还带和弦呢！就是用两行不同的旋律同时弹，相当于钢琴用两只爪弹。（喂，你确定那是叫和弦么拍飞） 因为我不会乐器并且五音不全，所有简谱的知识都来自小学音乐课orz，所以或许跑调也…也…… 哼，你要是敢说我跑调，那你到我面前来把这首歌唱一遍来证明你不是跑调的！！一般唱歌都会跑调，编个程跑调又肿么了！跑调才萌嘛 你们喜欢哪首歌也可以把简谱写在指定位置（我在编码中有标注），我把所有的音符的函数都补全了！！现在是所有歌曲无压力！！！ 当然，这个程序不是我全部原创的，是参考了网上已有的程序又改造以及补充了一下。 把下面的代码复制到M文件就可以播放生日快乐了~(matlab playing the song Happy Birthday ~)

人工免疫遗传算法的matlab代码实现，实测可以出结果。(artificial immune genetic algorithm)

学习线性分类器，可以自动识别两类数据点，数据点可以有交叉域，或者没有，共使用了三种方法。(Learning the self-learning process of linear classifier, and then design a linear two-class classifier and do some research based on the feature of linear classifier.)

陈亚勇的信号处理在MATLAB中的应用，好书(Of Chen Yayong the signal processing in MATLAB, a good book)

本文档实现了多种基于物理层RSS信道特征加密算法的实现以及性能分析对比。(This document realized its performance analysis and comparison of a variety of physical layer based RSS channel characteristics encryption algorithm.)

说明：  利用自适应粒子群进行寻优，实验效果良好，其中具体参数要根据实际调节(Using adaptive particle swarm optimization, the experimental results are good, and the specific parameters should be adjusted according to the actual situation.)

说明：  连杆机构的运动设计，matlab程序设计，连杆的运动设计(rod design )

This code performs wide band Cooperative Spectrum Sensing under various noise levels. A large number of primary users as well as secondary users are considered.The detection is power spectral density based . This project gives the lower bound for the power level of the PU signa...This code performs wide band Cooperative Spectrum Sensing under various noise levels. A large number of primary users as well as secondary users are considered.The detection is power spectral density based . This project gives the lower bound for the power level of the PU signa...

说明：  基础的迭代学习控制算法，基于开环、闭环、开闭环的算法(Basic iterative learning control algorithm)