plot_4.m

通过图形实现OFMD的图像仿真

line=1;
x=5:2.5:40;
y=zeros(line,15);
yo=747;
y_scale=(747-47)/3;
ya=[76  132 194 259 313 338 383 431 442 453 479 479 502 493 513];
yr=(yo-ya)/y_scale;
for row=1:line
    for column=1:15
        y(row, column)=1e-4*10^yr(row, column);
    end
end

figure;
semilogy(x,y(1,:), 'x:');
hold on;
ylabel('MSE');
xlabel('SNR(dB)');
axis([5,40,1e-4,1e-1]);
legend('线性内插');