GM11

a tree dimensional PML code fdtd3D_UPML

Navier-stokes flow in a pipe using CFD-based numerical code.

主要介绍几种函数的傅里叶变换，及傅里叶函数变换的matlab实现(Several functions introduced Fourier transform, and the Fourier transform matlab realization function)

自己编的谱减语音增强谱减算法程序，带噪语音按帧处理的，利用寂静帧的语音段来估计噪声。(Own spectrum minus minus algorithm for spectral speech enhancement procedure of Noisy Speech by the frame of the treatment, the use of silence the voice frame to estimate the noise above.)

极大似然估计是概率论中的重要思想，阅读此文献可以帮助我们了解极大似然估计的含义(Maximum likelihood estimation is important in probability theory thinking, reading this literature can help us understand the meaning of maximum likelihood estimation)

能进行BPSK信号通信系统的仿真，且有误码率的分析。(Can simulate BPSK signal communication system, and an analysis error rate.)

总结了最基本和最常用的mattlab源码，很实用(Summarizes the most basic and most common mattlab source, it is practical)

合成孔径雷达（SAR)目标成像仿真，用于信号特征提取、信号消噪，在matlab环境中自动识别连通区域的大小,正确率可以达到98％，使用大量的有限元法求解偏微分方程，仿真图是速度、距离、幅度三维图像。( Synthetic Aperture Radar (SAR) imaging simulation target, For feature extraction, signal de-noising, Automatic identification in the matlab environment the size of the connected area, Accuracy can reach 98 , Using a large number of finite element method to solve partial differential equations, FIG simulation speed, distance, amplitude three-dimensional image.)

说明：  使用信号的Higuchi分行维数提取出信号的暂态特征(Using Higuchi Branch Dimension of Signal to Extract Transient Characteristics of Signal)

采用MATLAB编程，产生一个16QAM中频调制信号。采用MATLAB编程，产生一个16QAM中频调制信号。(Using MATLAB programming, a 16QAM modulation signal frequency. Using MATLAB programming, a 16QAM modulation signal frequency.)