Pendulum_fourier

说明：  matlab help 中文~~~~~~~~~~~~~~(matlab help)

集合emd变换，近年来较为流行的时间序列分析方法(ensomble emd transformation, more popular in recent years, time series analysis)

详细介绍了matlab与文件操作相关的语句用法(Detailed description of the matlab file operations associated with the usage of the phrase)

直接序列扩频系统抗单音干扰的性能分析（升余弦滚降成型）(Direct sequence spread spectrum simulation )

粒子群算法，详细介绍了粒子群的历史、原理以及matlab仿真代码(particle swarm optimization)

粒子群算法Matlab程序（反复调试过，还有运行过程）(Particle swarm algorithm Matlab procedures (testing repeatedly, during operation))

实现三电平整流功能，相对于两电平，电平数更多，谐波更小(Achieve three-level rectification function, with more levels and less harmonics than two levels)

CHANNEL ESTIMATION AND PREDICTION MATLAB CODE

信道估计仿真，采用了多种方法：线性插值，MMSE，1惟MMSE,2维MMSE等(Channel Estimation 1 for non-block-wise linear interpolation, 2 for block-wise 1-D MMSE, 3 for non-block-wise 1-D MMSE, 4 for block-wise 2-D MMSE, 5 for non-block-wise 2-D MMSE, 6 for ideal channel estimator, 7 for random pilots map case using 2-D MMSE.)

对一有三个峰值信号的波形进行处理，选出三个峰值。(On the one the three peak waveform of a signal processing selected three peaks.)