Numerical-Analysis-and-matlab-CD

计算时间序列近似熵的matlab代码，欢迎大家下载。(Approximate entropy matlab code to calculate the time series, welcome to download.)

matlab gui希望对大家用 大家可以看看(very good)

本文利用MATLAB的可视化工具箱simulnk建立了直扩通信系统的仿真模型，为扩频信号源自检程序设计提供参考。(In this paper, the visualization MATLAB toolbox simulnk DSSS communication system established a simulation model for the spread spectrum signal self-test program designed to provide information.)

说明：  自己用matlab编写的ofdm程序。供大家交流学习。(Written with matlab ofdm own procedures. For everyone to share their knowledge.)

设计一维纳滤波器 (1)产生三组观测数据：首先根据s(n)=a s(n-1)+w(n)产生信号s(n)，将其加噪（信噪比分别为20dB,10 dB，6 dB），得到观测数据x1(n), x2(n), x31(n). (2)估计xi(n)，i=1,2,3的AR模型参数。假设信号长度为L，AR模型阶数为N，分析实验结果，并讨论改变L,N对实验结果的影响。 (A Wiener filter design (1) to produce three sets of observations: first generating a signal s (n) according to s (n) = as (n-1)+w (n), to add noise (20dB SNR, respectively , 10 dB, 6 dB), to obtain observational data x1 (n), x2 (n), x31 (n). (2) estimate xi (n), i = AR model parameters 1,2,3. Assuming the signal length L, AR model of order N, analysis of experimental results and discuss the impact changing L, N of the experimental results.)

reconocimiento de voz david robert s

16－QAM基带传输系统的Matlab仿真 实现了主要模块二进制信息源输入，16QAM调制，发射滤波器，接收滤波器，采样，均衡，信号检测，16QAM解调，信息还原输出，产生BER曲线图。(16-QAM base-band transmission system Matlab simulation to achieve the main source of information input module binary, 16QAM modulation, fired filter, receiver filter, sampling, balance, signal detection, 16QAM demodulator, information to restore the output, resulting BER curves.)

frequency estimation using Root Music

frequency expander. Matlab code for expander.When x is a vector, this function adds L-1 after each element of x. When x is a matrix, each column of it treated as vector and expanded L fold. SQUARE-ROOT RAISED-COSINE PULSE: h=sr_cos_p(N,L,alpha) This function generates a square-root raised-cosine pulse of length N+1. There are L samples per symbol period. alpha is the roll-off factor.

点目标的高分辨一维距离像的仿真程序，代码中会生成回波数据。(Point target high resolution range profile simulation program, the code will be generated in the echo data.)