x = 23 : 0.09 : 40;        % 15個(gè)點(diǎn)表示150個(gè)ns
[zhiFangTu,timeAxis] = hist(aPf,x);
figure(1)
bar(timeAxis,zhiFangTu);
 x = 23 : 0.09 : 40;        % 15個(gè)點(diǎn)表示150個(gè)ns
[zhiFangTu,timeAxis] = hist(bPf,x);
figure(2)
bar(timeAxis,zhiFangTu);
clc;