Adding a pulse every 0.5 seconds

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Ashlynn Gallagher
Ashlynn Gallagher 2020-9-19
评论： VBBV 2020-11-25
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
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Ashlynn Gallagher
Ashlynn Gallagher 2020-9-24
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
VBBV 2020-11-25
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

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回答（1 个）

Nomit Jangid
Nomit Jangid 2020-9-22
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.

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