how to change title automatic ?

Question

tomer polsky 2018-7-30

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/412750-how-to-change-title-automatic

评论： tomer polsky 2018-7-30

for exmaple I have this code :

ta = 0:1/4000:2/60; % analog time axis
f_sample=800;
xa1 = cos(2*pi*60*ta+pi/3);
xa2 = cos(2*pi*340*ta-pi/3);
xa3 = cos(2*pi*460*ta+pi/3);
tn = 0:1/f_sample:2/60; % discrete-time axis as n*Ts 
xn1 = cos(2*pi*60*tn+pi/3);
xn2 = cos(2*pi*340*tn-pi/3);
xn3 = cos(2*pi*460*tn+pi/3);
subplot(3,1,1);
plot(ta,xa1)
hold on;;
stem(tn,xn1);
title('x1(t)- f_a_n_a_l_o_g=60  f_s_a_m_p_l_e=400');
legend('blue-countinous(analog) signal','orange-discrete signal');
xlabel('ferquincy-[Hz]');
ylabel('x_1(t),x_1[n]');
subplot(3,1,2);
plot(ta,xa2);
hold on;
stem(tn,xn2);
title('x2(t)- f_a_n_a_l_o_g=340   f_s_a_m_p_l_e=400');
legend('blue-countinous(analog) signal','orange-discrete signal');
xlabel('ferquincy-[Hz]');
ylabel('x_2(t),x_2[n]');
subplot(3,1,3);
plot(ta,xa3);
hold on;
stem(tn,xn3);
title('x3(t)- f_a_n_a_l_o_g=460  f_s_a_m_p_l_e=400'); 
xlabel('ferquincy-[Hz]');
legend('blue-countinous(analog) signal','orange-discrete signal');
ylabel('x_3(t),x_3[n]');