P3-2

This is a sample code in Matlab designed to solve a finite element modeling problem on a rectangular platform.

超声波声场模拟，可自行设定频率、发射波形、带宽等等，设定换能器矩阵(Ultrasonic sound field simulation, can set the frequency of the transmitted waveform, bandwidth, etc., setting the transducer array)

说明：  matlab 实现文字提取 及正负面分析(Text Classication and Sentimental Analysis)

matlab30个案例算法之一，对学习有很大帮助(the one of matlab30 case algorithm learning)

Monte Carlo Markov Chain (MCMC)

MATLAB程序设计之算法回归分析MATLAB programming algorithm for regression analysis of(MATLAB programming algorithm for regression analysis of MATLAB programming algorithm for regression analysis of)

离散傅立叶变换DFT和快速傅立叶变换FFT的比较(Discrete Fourier Transform and Fast Fourier Transform Comparison)

用于产生解析信号，产生一个信号的同相和正交分量以及包络和相位(used to produce analytical signal, a signal generated in the same phase and quadrature components and the envelope and phase)

Some of the files model satellite formation for a leader and follower configuration while others relate direction cosine transformation for 3-1-3 rotation

无线信道建模很复杂，不同场景下的模型差异较大，这是一本讲解无线信道建模方法的经典书籍配套的matlab例程(Channel modeling is complex models under different scenarios are quite different, which is a classic way to explain the channel modeling books matching matlab routines)