cmp03

five Matlab Programs circular convolution

黄金分割法，要用的自己下来看看吧，很好的优化程序 (Golden section method, we should take a look at it from their own, a good optimizer)

说明：  emd分解及其重构,分解成对个IMF，然后进行重构(emd emperical modal decomposition)

How to moedelling Acrobot as an underactuated system

BPSK调制源码。原创。参数开放。绝对宜用。请大家给意见(BPSK modulation source. Original. Open parameters. Absolutely suitable. Please everyone give their views)

matlab的s函数的编写教程，十分详细(matlab s function to write the tutorial, very detailed)

说明：  kurtogram是一种四阶谱分析工具，用于检测和表征信号中的非平稳性。可用于轴承的故障诊断(The kurtogram is a fourth-order spectral analysis tool elaborated for detecting and characterising nonstationarities in a signal. It relies on the assertion that each type of transient is associated with an optimal (frequency/frequency resolution) dyad (f ; Df) which maximises the kurtosis. The Fast Kurtogram computes the kurtogram over a grid that finely samples the (f ; Df) plane. Its complexity is on the order of N log N. This is the "plain vanilla" code used in paper: J. Antoni, Fast Computation of the Kurtogram for the Detection of Transient Faults, Mechanical Systems and Signal Processing, Volume 21, Issue 1, January 2007, Pages 108-124.)

本程序中得到的收端OFDM信号的频谱波形，是与其发端信号的排步有关的。在发端的 ％ 载波安排上，128个载波有前后各32个载波是null载波(如果这前后各32各载波是带外频段， ％ 那么理论上它们都应该是零！)，中间的64个载波是数据载波。这样的排步很明显就是一个 ％ 两边低，中间高的频谱形式。所以，收端也应该是这个轮廓。 (this process the resumption end of the spectrum OFDM signal waveform, with the originator of the signal further on the row. The originator% carrier arrangements, 128 of the carrier after a 32 carrier is null carrier (if it was around the 32 is the carrier frequency band. % then theoretically they should be zero!) the middle 64 carrier data carrier. This arrangement is obviously further 1% lower on both sides, in the middle of the spectrum form high. Therefore, the admission should end this profile.)

对于球形颗粒物，r为球的半径但非球形颗粒物，r还不确定。 水中由悬浮颗粒物产生的光散射引起光子的传输方向发生变化，光子已偏离了准直方向。但不会改变光子的其他特性随机过程。 (scattering light transmission in water )

本文是关于无功补偿器的一种控制方法，是基于模型预测控制的，本文作者有两篇关于这个问题的论文，这一篇比较详细，可以作为了解statcom的预测控制的材料。(This article is about the kind of reactive power compensation control method is based on the model predictive control, the authors have two papers on the subject, this one in more detail, can be used as material to understand statcom predictive control.)