220.1

频谱分析仪，采用MATLAB GUI编程(Spectrum analyzer, using MATLAB GUI Programming)

sound filter for sound waves

matlab仿真软件和解析法来计算一维光子晶体带隙(matlab simulation software and analytic method to calculate the one-dimensional photonic crystal band gap)

在Matlab环境下实现的功率谱估计程序，经典法，带绘图功能(In the Matlab environment realize the power spectrum estimation procedure, the classical method, with graphics)

使用Visual Basic 使用将Taskbar隐藏和显示的API(use Visual Basic to use and display Taskbar hiding API)

使用matlab程序实现最小二乘法的基本原理和多项式拟合算法程序(the code for least square with matlab)

ecg signal generation using fourier series

这是根据3GPP提案，LTE所采用的信道模型代码，希望对大家有用(LTE channel model code)

matlab 处理声音合成，分解，删除等操作(matlab deal with sounds)

在MATLAB环境下实现了CDMA通信系统仿真，程序流程为：随机序列产生--WALSH码扩频--BPSK调制--加入（和不加入）高斯白噪声--BPSK解调--WALSH码解扩，对过程波形进行了存储，对加噪与不加噪情况下的解码结果进行了对比，并绘制出信噪比与误码率关系图。(In the MATLAB environment to achieve a CDMA communication system simulation, the program flow as follows: random sequence generated- WALSH yards Spread Spectrum- BPSK modulation- to join (and not to join) Gaussian white noise- BPSK demodulator- WALSH yards Solution expansion of the process of waveform storage, to add noise and without noise cases, the decoding results were compared, and draw out the signal to noise ratio and bit error rate diagram.)