自适应均衡matlab仿真,对比RLS,LMS以及NLMS的均衡前后星座图效果,调制采用4QAM,16QAM,64QAM 1.算法描述 在无线通信系统中,由于多径效应及码间干扰的存在,信号误码率会升高。均衡技术是一种对抗码间干扰的重要技术。本文将介绍LMS均衡和RLS均衡两种均衡算法。在线性和非线性均衡中的应用。将MSK信号经过三径多径信道。
MATLAB电子仿真与应用[M].北京:国防工业出版社, 2001. 〔5〕王立宁,乐光新. MATLAB与通信仿真[M].北京:人民邮电出版社, 2000. 〔6〕Simon Haykin . Adaptive Filter Thearo[M].北京:电子工业出版社, 2006 . 图2R LS 算法的均方误差曲线 图1R LS算法的输入和输出曲线 26 --...
Zi=filtic(num,den,u0);%滤波器的初始条件 un=filter(num,den,v,Zi);%产生样本序列u(n),Nx1xtrials %figure,stem(un),title('随机信号');gridon; %产生期望响应信号和观测数据矩阵 n0=1;%虚实现n0步线性预测 M=2;%滤波器阶数 b=un(n0+1:N);%预测的期望响应 L=length(b); un1=[zeros(M-1,...
rlsFilt = dsp.RLSFilter returns an adaptive RLS filter System object, rlsFilt. This System object computes the filtered output, filter error, and the filter weights for a given input and desired signal using the RLS algorithm. rlsFilt = dsp.RLSFilter(len) returns an RLS filter System objec...
(M,iter);%每一行代表一次迭代滤波器的M个抽头参数T=eye(M,M)*10;%RLS算法下T参数的初始化,T初始值为10X=zeros(1,M);lamuta=0.98 ; %遗忘因子 for j=1:100 ex=randn(1,N);%噪声信号e(n) x=filter(1,1,-1.6,0.8,ex);%经过系统H(Z)之后输出x d=x;%参考信号 for k=(M+1):iter-1 X...
r21=filter(b,1,r2); % FIR滤波 [ r1,r22]=add_noisedata(s,r21,fs,fs,SNR);% 产生带噪语音,信噪比为SNR M=50; % 设置M和Lambda Lambda = 0.1; % 遗忘因子 snr1=SNR_singlech(s,r1); % 计算初始信噪比 % RLS滤波 [y,~,e]=RLS(r2,r1,M,Lambda); ...
x=filter(1,[1,-1.6,0.8],ex);%经过系统H(Z)之后输出x d=x;%参考信号 for k=(M+1):iter-1 X=x(k-1:-1:k-M)'; K=(T*X)/(lamuta+X'*T*X);%k时刻增益值 e1=x(k)-wR(:,k-1)'*X; wR(:,k)=wR(:,k-1)+K*e1;%k时刻权值 y(k)=wR(:,k)'*X; err(k)=x(k)-y(...
yn =filter(H/sum(H),1,yn0); %加入噪声 yn = awgn(yn,SNR); %接收初步滤波处理 H1 = fir1(7,0.5); yn =filter(H1,1,yn); %基带等效正解解调 r_ynQ =real(yn); r_ynI =imag(yn); %由于时延固定取常数 delay = 1; re_I = r_ynI(delay); ...
MATLAB Answers How to use Adaptive filter for a Matrix? 0 답변 dsp.RLSFilter for multidimension 0 답변 How to get band passed filtered time series using Butterworth 0 답변 전체 웹사이트 Steerable Pyramid Builder, Visualizer & Texture Synthesizer File Exchange dsp.RLS...
r = filter(h,1,x); % Input passed trought system(h) d = awgn(r, SNR); % Addition of white gaussian noise of decined SNR ⛄ 运行结果 ⛄ 参考文献 [1]陈国通, 孙敬, 刘琪. 基于MATLAB的波束形成算法研究[J]. 内蒙古科技与经济, 2018(23):2. ...