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在matlab中利用Costas环对AM通信系统进行载波相位跟踪，代码中带有详细注释。(Costas loop in matlab using communication systems on the AM carrier phase tracking, the code with detailed comments.)

说明：  一个用MATLAB/SIMULINK做的四级倒立摆的控制系统模型(a MATLAB/Simulink do four inverted pendulum control system model)

ds-cdma系统仿真，考虑在多径衰落信道情况下，系统的误码率(ds-cdma system simulation, consider the multi-path fading channel circumstances, the BER)

三次样条插值函数的函数值，在matlab中的m文件，输入数据可以直接应用(the function of spline3)

这是matlab的时间预测的代码，非常实用，大家共享啊(This is the time predicted matlab code, very useful, share ah)

GUI 是一种结合计算机科学、美学、心理学、行为学，及各商业领域需求分析的人机系统工程，强调人—机—环境三者作为一个系统进行总体设计。(GUI is a combination of computer science, aesthetics, psychology, behavioral science, and the commercial areas of human-computer systems engineering requirements analysis, emphasizing the human- machine- environment as a system of three overall design.)

SVM的预测数据主程序，适用于数据分类或计算预测结果，变化数据的输入即可得到运行结果。(The main program of predictive data of SVM is suitable for data classification or calculation of predictive results. The operation results can be obtained by inputting variable data.)

HP filter to detrend time series data. Very useful!

twinkle twinkle little star. how i wonder what you are. up above the world so high. like a diamond in the sky.

基于Matlab的语音识别系统，实现了基本的算法，具有较高的参考价值。(Matlab-based speech recognition system to achieve the basic algorithm, has a high reference value.)