spatial_activity

文件包含两个m文件，一个是QPSK的主函数文件和单径的瑞利衰落信道fade.m文件，实现的对qpsk的过程进行了仿真（在瑞利和高斯信道的作用下）。绘制出了在各个阶段的波形图(M file contains two files, one file is the main function of QPSK and single path Rayleigh fading channel fade.m file qpsk the process of implementation of a simulation (in the Rayleigh and Gaussian channel under the action.) Drawn out at each stage of the waveform)

说明：  利用有限单元方法，采用三角形剖分，来求解场值(Finite element method, using triangulation to solve the field value)

雷达matlab仿真教材，该书提供了雷达仿真的matlab实例，读者可以由浅入深地掌握雷达处理中的关键问题(Radar simulation matlab textbook, the book provides radar simulation Matlab examples from the shallower to the deeper, the reader can grasp the key issues in the processing of a radar)

本程序是自己编写的关于广义相关法的时延估计，对于初学者很有用，里边还有关于改变中心频率对时延估计的影响部分(This procedure is to write your own delay estimation on generalized correlation method, useful for beginners, and inside there are about changing the center frequency delay estimation section)

it is acf matlab code

采用AR法模拟风速，计算时间较短，但精度相对于谐波叠加法略差(AR method using simulated wind speed, the calculation time is shorter, but the accuracy is slightly worse relative to the harmonic superposition)

Design of program in matlab

Signal and Systems Project in MATLAB code

小波包分析提取振动信号中的特征频率，有均匀线阵的CRB曲线，matlab开发工具箱中的支持向量机。( Wavelet packet analysis to extract vibration signal characteristic frequency, There ULA CRB curve, matlab development toolbox support vector machine.)

模拟脉冲在光纤中传输时色散对其的影响,通过作图形象地说明脉冲时域和频谱的演化(the dispersion effect of pulse propagating in fiber)