pca

可用matlab画污染物浓度时间序列图。(timeseries for pm)

MIMO信号与系统英文书里面配套的matlab程序，包括Alamouti原理的空时块码接收机过程等等。(MIMO Signals and Systems in English inside the book matching matlab procedures, including the principle of Alamouti space-time block code receiver process and so on.)

基于QR分解的MIMO系统的误码率性能仿真(QR decomposition based on the BER performance of MIMO system simulation)

用matlab仿真轴承故障信号构造轴承故障的仿真信号，其中轴承的固有频率fn=3000Hz , 位移常数y0=5, 阻尼系数ξ＝0.1, 冲击故障发生的周期为0.01s，采样频率fs=20KHz, 采样点数N=4096。要求：根据上述条件构造轴承故障的仿真信号，画出其时域波形及频谱图。(Matlab simulation bearing fault signal)

程序为地震勘探资料处理方法中的数值模型模拟正演，方法为射线追踪(The program forward numerical model for seismic exploration data processing method in the simulation, for ray tracing method)

说明：  微分进化算法，用于参数优化、寻找极值等，可自行加入其他约束条件和修改目标函数(Differential evolution algorithm for parameter optimization, search extreme, can free to add other constraints and modify the objective function)

利用基本粒子群优化算法，使用matlab工具，求解Rastrigrin函数。(using particle swarm optimization algorithm, the use of Matlab tool Solving Rastrigrin function.)

sismic work for the class of geophysics, This code was made for my coworkers

RUGGEDCOM USER GUIDE

说明：  根据语音信号的特点给出有关滤波器的性能指标：1）低通滤波器性能指标，fp=1000Hz，fc=1200 Hz， As=100dB，Ap=1dB；2）高通滤波器性能指标，fc=2800 Hz，fp=3000 Hz As=100dB，Ap=1dB；3）带通滤波器性能指标，fp1=1200 Hz，fp2=3000 Hz，fc1=1000 Hz，fc2=3200 Hz，As=100dB，Ap=1dB。用IIR对其分析，最后，利用MATLAB中的函数freqz画出各滤波器的频率响应。(This article according to the IIR filter and the FIR filter characteristic, uses the bilinearity method of transformation under the MATLAB bad boundary to design IIR and to design the FIR numeral filter separately with the window box number, and carries on the analysis to the gathering pronunciation signal, and finally gives IIR and FIR to the pronunciation filter effect.)