DFcoorpertivecommunication

OFDM(Orthogonal Frequency Division Multiplexing)即正交频分复用技术，实际上OFDM是MCM Multi-CarrierModulation，多载波调制的一种。其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰 ICI 。每个子信道上的信号带宽小于信道的相关带宽，因此每个子信道上的可以看成平坦性衰落，从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分，信道均衡变得相对容易。本程序实现OFDM与QPSK技术的比较(This program realization technology and the OFDM QPSK technology)

说明：  结合回声消除和语音增强方法的double talk算法，能在噪声环境下定出语音的端点(light echo cancellation and voice enhancement method of double talk algorithm can be noisy environment set voice endpoint)

基于matlab的直流电阻率2.5维正演程序，供学习参考用。(A MATLAB 2.5-D electrical resistivity modeling code)

用MATLAB写的信道辨识与盲估计的有关数据处理的源程序(MATLAB was used identification and blind channel estimation of the data processing of the source)

一维光子晶体的FDTD 分析法MATLAB程序(One-dimensional FDTD analysis of photonic crystals MATLAB program)

FIR Wiener Filter Applications: The following demos demonstrate the corresponding applications fir_f - FIR Wiener Filter fir_p - FIR Wiener Linear Predictor fir_nc - FIR Wiener Noise Cancellation (FIR Wiener Filter Applications: The following demos demonstrate the corresponding applications fir_f- FIR Wiener Filter fir_p- FIR Wiener Linear Predictor fir_nc- FIR Wiener Noise Cancellation )

Dijktra s single source shortest path algorithm. The function takes a graph (which may be sparse) as an input and returns the matrix of shortest distances between all of the nodes. Additionally, individual source and sink nodes may be specified as additional arguments.

基于瞬时无功功率理论ip-iq法的仿真模型，实际工程中的使用。希望对大家有帮助(The simulation model of instantaneous reactive power theory ip-iq method based on, we want to help)

演示在给定初始位置和速度（含大小和方向）下verlet三粒子体系的二维演化运动情况(Demonstration verlet at a given initial position and velocity (including magnitude and direction) under the three-dimensional evolution of the particle system movement)

Linear Algebra - Math book