Adding a pulse every 0.5 seconds

Hi,

I'm trying to add a pulse every 0.5 seconds (0.5 seconds separation between pulses), but I'm not sure where I'm going wrong.

Here's my code so far:

t0 = 0; % initial time
tf = 4; % final time
dx = (1/1349.9); % step size
time = [t0:dx:tf]; % time array for excitation
n = int16((tf-t0)/dx); % number of samples
du = 0.5; % separation length in seconds
num_pulses = 10; % number of pulses
u = zeros(n); % empty array for neural excitation value
u_1 = excitation_value('153us'); % neural excitation value from dictionary for a given pulse width

for p = 1:num_pulses
    for i = 1:n

    u = u + u_1(i*du);
    
end
end

[Nomit Jangid]

What is the pulse width? Do you have user-defined functions/custom function "excitation_value" ?

[Ashlynn Gallagher]

Hi, 'excitation_value' is a dictionary I made that stored the already calculated excitation values that correspond to a given pulse width. The pulse width that I'm using here is 153us and this has some excitation value that I already calculated beforehand that is stored in the dictionary so my overall goal is to plot the excitation values for 10 pulses with a separation of 0.5s between pulses

[VBBV]

u_1 = 153e-06; % excitation_value('153us');  is 153 microseconds
for p = 1:num_pulses
    for i = 1:n
    u(i) = u(i) + u_1*du;
    
end
end

Answer 1

[Nomit Jangid]

There are few things i'd like to suggest

• "zeros(n)" functions returns an n-by-n matrix of zeros.(not array)
• MATLAB does not have any inbuilt function "excitation_value"
• Assuming pulse is generating in every 0.5 sec, there should be 2*60*60 pulses every hour.