test_hdd_noinst.m

hard disk drive spindle motor control simulink, show you how to keep the speed at a level

xx=[];
yy=[];
lgain=10^(35/20);
for ii=1:10
    xx(ii) = -35 - 5 * ii;
    filter_coeff = 10^(xx(ii)/20);
    sim('hdd_noinst');
    yy(ii) = meanerror(1);
    plot(xx,yy);
    xlabel('filter coeff dB');
    ylabel('mean error');
end