OFDM_basic

不考虑多径干扰时在高斯白噪声和瑞利衰落信道条件下QPSK的调制解调过程， 并采用准分析法完成误码性能的计算。仿真过程包括仿真信号产成，滤波器设置，QPSK调制，加入高斯白噪声，通过锐利信道衰落，QPSK解调，误码率计算等几部分(Not consider multi-path interference at the white Gaussian noise and Rayleigh fading channel under the conditions of the QPSK modulation and demodulation process and the use of quasi-analysis method to complete the calculation of BER. The simulation process includes the middle class into a simulation signal, filter settings, QPSK modulation, by adding Gaussian white noise, through the sharp decline in channel, QPSK demodulation, bit error rate calculation and other parts)

采用matlab编程的DTMF检测程序仿真，经过测试，绝对可用，可检测多个DTMF信号！(using Matlab programming DTMF detection process simulation, tested and absolutely can be used, can detect DTMF signals over!)

该文件时通信原理中的最基本的数字调制方式BPSK（二进制相移键控），希望对大家学习有帮助(When the file is the basic communication principle of digital modulation BPSK (binary phase shift keying), we hope to learn helpful)

用于信号处理的emd改进算法,供大家讨论学习(EMD for the signal processing algorithm study for discussion)

异构网垂直切换的仿真，内含有matlab代码，以及jakes模型，大尺度衰落(Simulation of heterogeneous network vertical handoff, containing matlab code, and the jakes model, large scale fading)

用于神经元峰电位主成分分析提取特征系统聚类进行分类(use for classfy)

用改进欧拉法求解常微分方程初值问题：用改进的欧拉法不仅提高了精度而且算法比较简单，(The improved Euler method to solve initial value problems of ordinary differential equations: Euler' s method with improved accuracy and the algorithm not only improve relatively simple,)

说明：  EM算法的高斯分布的MATLAB程序源码实现(EM Algorithm for Gaussian distribution of the MATLAB program source code to achieve)

说明：  本人提交的用matlab的关于滤波器设计的作业，很有用的　(I used Matlab submitted on the design of filter operation, a very useful)

Building damage to flood storm and tsunami