signal

程序为参数寻优的集合，包含当今主流优化工具，适合初学者参考。(Program for the parameter optimization of collection, including today s mainstream optimization tool, suitable for beginners reference. )

此文件为模理退火的matlab源代码,适合参加数学建模的同学使用(The file mode rationale annealing matlab source code, suitable for students to participate in the mathematical modeling)

emprical model decomposition经验模态分解，可以对随机信号自动分解成本征模函数，matlab实现代码(emprical model decomposition)

说明：  信号与系统课程实验：实验一 信号的MATLAB表示实验二 连续时间系统的时域分析实验三 信号的Fourier分析实验四 连续系统的频域分析实验五 调制与解调实验六 无失真传输与滤波实验七 信号采样与重建(Signal and system course experiment)

deec and leach protocol

利用相关分析法对系统进行辨识，使用matlab,能够成功辨识出系统传递函数(Correlation analysis method using the system identification, the use of matlab, can successfully identify the system transfer function)

说明：  matlab测试图片以及脚本，内容不多，比较简洁(matlab test pictures and scripts, the contents of small, relatively simple)

matlab中所有基本函数功能实现的源代码，可以利用以下函数实现matlab中信号处理的傅里叶等函数变换。(matlab function to achieve the basic function of all the source code, you can use the following function implementation matlab signal processing functions such as Fourier transform.)

完整的直扩系统的仿真，包括误码率，相关性、m序列、gold序列产生、Walsh、码等等一系列问题的matlab仿真，7个文件共(Complete DS system simulation, including bit error rate, correlation, m sequence, gold sequence generation, Walsh, code, and so a range of issues of matlab simulation, a total of 7 documents)

利用bp系统预测北京98-05公交客运量(Bp system in predicting the use of public transportation passenger Beijing 98-05)