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说明：  此程序为时频分析工具箱，在MATLAB中添加此工具箱可对信号进行时频分析，无需再自己编写程序(This program is too frequency analysis toolbox, add to this toolbox in MATLAB can signal time-frequency analysis, no longer need to write your own program)

this program is about jpeg demo

数字信号频域处理的matlab源程序，包括dct，butterworth，lowpass等(Frequency-domain digital signal processing matlab source, including dct, butterworth, lowpass, etc.)

该程序描述了怎样把一组数据读入Matlab并用图形显示出来。(The program describes how to read a set of data into Matlab with graphics.)

用分布傅里叶计算硅波导中的非线性薛定谔方程，考虑硅波导中色散及非线性损耗(solution of NLSE(two pulses propagate in silicon waveguide) using split step fourier method)

利用matlab设计带通滤波器。很实用。编译通过。思路来自期刊论文(matlab bandpass filter)

说明：  先进PID控制matlab仿真(第二版)源程序，作者：刘金琨，电子工业出版社，2004年9月第一次印刷。在控制方向十本不错的书，里面的控制算法很值得借鉴！(Matlab simulation of advanced PID control (second edition) source, Author: Liu Jinkun, Publishing House of Electronics Industry, in September 2004 the first printing. 10 in the control of the direction of a good book, which control algorithm is worth learning!)

这个是silabs的芯片si1010的发射单音信号的实例，因为涉及保密，所以修改了一部分，测试可用(This is an example of the tone signal transmitter chip si1010 silabs, and because it involves confidential, so modify the part of the test can be used)

永磁同步电机恒压恒频matlab仿真模型，仿真效果很好(matlab pmsm VVVF simulink)

802.15 dsss 物理协议层方针代码(802.15 dsss physical protocol layer code policy)