helicopterpaper1

具体描述了mimo系统实现的仿真过程，方便初学者进一步学习研究。(simulation of mimo system)

说明：  一个包含多个matlab文件的工具包，利用它可以方便使用模糊c均值聚类(Matlab file contains more than one kit, using it can easily use the fuzzy c means clustering)

this is matlab codes for t-norms

程序仿真了瑞利信道，分析和大量实测表明，多径效应使接收信号包络变化接近瑞利分布。在典型移动通信中，衰落深度达30dB左右，衰落速率约30~40次/秒。(Rayleigh channel simulation procedures, analysis and extensive test shows that the received signal multipath effect changes in the envelope close to the Rayleigh distribution. In a typical mobile communication, fading depth of about 30dB, the decline rate of about 30 to 40 times/sec.)

使用matlab代码，实现心形图像的绘制(Using matlab code to draw heart-shaped images)

DSB双边带调制，相干解调和包络检波的对比，以及信号输出的频谱(DSB Double Sideband modulation, coherent demodulation and envelope detection of the contrast, and the signal output spectrum)

MATLAB的图像处理功能，功能十分强大，内容也很丰富(MATLAB image processing functions, is very powerful, very rich in content)

该程序输入两个频率值以及一个时间变量，计算时间序列，并对事件序列做出傅里叶分析(Enter the two frequency values ​ ​ of the program and a time variable, calculate the time series, Fourier analysis and the sequence of events to make)

本人的matlab作业，用于画图，格式美观大方，易于生手使用(my matlab homework ，for plot figura)

利用平面波展开的方法计算二维光子晶体的缺陷模(Using plane wave expansion method to calculate two-dimensional photonic crystal defect modes)