FastICA_25

matlab image reading

为了提高通信系统的信息传输速率，人们提出了UWB通信系统，即Ultra-Wideband 通信系统。在UWB系统中，信号的带宽一般都在GHz的量级，这么宽的带宽造成了UWB系统和现有的通信系统频谱的重叠。为了降低对现有通信系统的影响，UWB信号的设计需要满足一定的频谱模板。如果一个信号的频谱基本满足频谱模板的规定（即在绝大部分频段内功率小于规定区间的上限），我们可以认定其为一个UWB信号。(In order to improve communication systems, information transmission rate of UWB communications systems have been proposed, namely, Ultra-Wideband communication systems. In the UWB system, the signal bandwidth will generally be in the order of GHz, caused such a wide bandwidth of UWB system and the existing communications system spectrum overlap. In order to reduce the impact of the existing communication systems, UWB signal design needs to meet certain spectral mask. If a signal spectrum can basically meet the spectral mask (that is, in most of the provisions of band power is less than the maximum range), we can assume it as a UWB signal.)

振动原理与分析计算机大作业 求解非线性振动分析，公式根据书中的 用计算方法的4阶 r-k数值方法(Vibration theory and analysis of computer operations for solving large non-linear vibration analysis of the formula calculation method according to the book of 4-order numerical method rk)

HHT是历史上首次对Fourier变换的基本信号和频率定义作的创造性的改进。他们不再认为组成信号的基本信号是正弦信号,而是一种称为固有模态函数的信号(HHT is the first time in the history of the Fourier transform basic definition signals and frequencies for creative change Progressive. They will no longer signal that the basic component signal is sinusoidal signal, but as an intrinsic mode function signals)

matlab的串口函数使用，利用串口读数并操作(matlab serial port function, use, and operation of the use of serial reading)

这个代码可以画出一个具有一定倾角的规则长城(This code can draw a certain angle with the rules of the Great Wall)

读取图像 显示图像 将图像矩阵类型转换为double 傅里叶变换 离散余弦变换(Read image shows the image matrix type image is converted to double Fourier transform discrete cosine transform)

比较全面的介绍了三角形平面单元的计算，包括matlab源程序和PDF说明(Triangular Plate Displacement Elements)

这是一个Knn分类算法的Python实现，Matlab中有类似的函数(knn classifer)

16QAM调制解调源码,包含FFT、IFFT、MER计算等(16-QAM modulation)