zhongfang.asv

雷达系统建模与仿真的matlab程序

function zhongfang(x)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%中频放大器
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
[M,N]=size(s);
Vgain=6;                                         %中放增益
w1=(f0-4*f1/3)*2*pi/fs;w3=(f0-f1/3)*2*pi/fs;
w2=(f0+7*f1/3)*2*pi/fs;w4=(f0+4*f1/3)*2*pi/fs;
th=min((w3-w1),(w2-w4));
M1=ceil(6.2*pi/th)+1;
n=[0:M1-1];
w5=(w1+w3)/2;w6=(w4+w2)/2;
h=wide(w6,M1)-wide(w5,M1);
w=(hamming(M1))';
h=h.*w;
L=length(h);
s=Vgain*s;
z=zeros(M+L-1,N);
for i=1:N
    z(1:M+L-1,i)=conv(h,s(1:M,i)')';
end
y=zeros(M,N);
for i=1:N
    y(1:M,i)=z(1:M,i);
end
w=y(:)';
subplot(3,1,1);
i=0:length(w)-1;
plot(i,w);
subplot(3,1,2);
plotpu(w);
subplot(3,1,3);
plotpu(h);