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Noise Suppression library source code

自适应滤波器LMS算法（去噪的）自己弄的(LMS adaptive filter algorithm (denoising))

64QAM的基带系统仿真，计算随机0、1数据经64QAM调制后的星座图，8倍上采样后图形，滤波后图形，接收端图形，比较不同信噪比下的误码率(64QAM baseband system simulation, calculation data randomly 0,1 modulated by 64QAM constellation, the 8 times the sampled pattern, filter pattern graphic receiving end, error rate under different SNR)

Mackey-Glass prediction series

在有时域或频域延迟干扰下的OFDM同步技术仿真，MATLAB代码。(Synchronization in OFDM sometimes delay interference or frequency domain simulation, MATLAB code.)

三维线性方程组的一个简便处理方法，用于线性复杂系统控制(liner control)

设计一维纳滤波器 (1). 产生三组观测数据：首先根据S(n)=aS(n-1)+w(n)产生信号S(n)，将其加噪声(信噪比分别为20db，10db，6db)，得到观测数据X1(n)，X2(n)，X3(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。(Design a Wiener filter (1) produces three sets of observations: First, according to S (n) = aS (n-1)+ w (n) generates the signal S (n), to add noise (SNR are 20db, 10db, 6db ), obtained observational data X1 (n), X2 (n), X3 (n). . (2) estimated Xi (n), i = 1,2,3 of the AR model parameters. Assuming the signal length L, AR model order N, the analysis of experimental results, and discuss the changes in L, N to the experimental results.)

说明：  E4 tool for matlab, for modeling time series

使用时域有限差分法对微带漏波天线进行数值仿真，得到了微带漏波天线TE。模下的电场分布，对微带漏波天线的电波传播特性进行初步的讨论(Using the FDTD method, microstrip leaky wave antenna numerical simulation to get the microstrip leaky wave antenna TE. Electric field under mode distribution of the microstrip leaky wave antenna wave propagation characteristics were discussed)

低通滤波，属于频域滤波，先做傅里叶变换，再把中心移到原点，距离中心远的代表噪声信息，舍去(low-pass filter in Fourier domain)