drawEigenmodes1Dify

一本FDTD书的课后程序，希望有点用。。SeuWangyx(An after-school programs FDTD book, I hope some use. . SeuWangyx)

利用该代码，可以计算各子信道的功率谱。看出哪些信道是最强的 (caiculating the PDP of the subchannel)

说明：  最速下降法是迭代法的一种,可以用于求解最小二乘问题(线性和非线性都可以)。在求解机器学习算法的模型参数，即无约束优化问题时，梯度下降（Gradient Descent）是最常采用的方法之一，另一种常用的方法是最小二乘法。在求解损失函数的最小值时，可以通过梯度下降法来一步步的迭代求解，得到最小化的损失函数和模型参数值。反过来，如果我们需要求解损失函数的最大值，这时就需要用梯度上升法来迭代了。在机器学习中，基于基本的梯度下降法发展了两种梯度下降方法，分别为随机梯度下降法和批量梯度下降法。(The steepest descent method is a kind of iterative method, which can be used to solve the least squares problem (both linear and nonlinear). In solving the model parameters of machine learning algorithm, that is, unconstrained optimization, gradient descent is one of the most commonly used methods, and the other is the least square method. When solving the minimum value of loss function, the gradient descent method can be used step by step to get the minimum value of loss function and model parameters. Conversely, if we need to solve the maximum value of the loss function, then we need to use the gradient rise method to iterate. In machine learning, two kinds of ladders are developed based on the basic gradient descent method)

各种聚类算法的matlab程序集，说明见其中的readme文件(Various clustering algorithm matlab assembly to illustrate one of the readme file, see)

OFDM信道建模simulink仿真的MATLAB源码 (OFDM channel modeling simulation of MATLAB source simulink)

用FFT分析离散时间周期信号的频谱实例，利用FFT分析离散时间周期信号的频谱，通过实验理解分辨率的概念和栅栏效应。(With a the FFT analysis the the frequency spectrum instance of of the discrete-time periodic signal, the use of the FFT analysis the the frequency spectrum of the discrete-time periodic signal, through the experiment understanding of the the the concepts and the picket fence effect of of the resolution.)

reynolds pressure distribution matlab codes

说明：  在MATLAB环境下实现量化后的PCM编码(In the MATLAB environment to achieve quantized PCM coding)

具有图形操作界面的支持向量机多类分类实验系统.全部用Matlab实现,可以实现多种分类识别. 这是本人的毕业设计的附属程序(graphical interface with support vector machines more experimental classification system. All using Matlab, could achieve multiple classification. This is my graduation design procedures for the subsidiary)

有限时域差分算法Matlab程序，用于计算场强分布。(finite time domain finite difference algorithm is used to calculate the field intensity distribution)