Generating spike using decaying exponential sinusoid of frequency 10^7Hz
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Reji G
am 21 Apr. 2022
Kommentiert: Mathieu NOE
am 21 Apr. 2022
How to generate this spike?(Spike only. Not the sine wave). It should be generated with an exponential decaying sinusoid. The frequency of sinusoid is 10^7 Hz. If not possible to generate using exp. function, please suggenst other idea.
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Mathieu NOE
am 21 Apr. 2022
hello
try this code ; I guessed the pattern period about 0.01 second but you can of course modify it
Fs = 1e7;
dt = 1/Fs;
one_signal_period = 0.01;
t=(0:dt:one_signal_period-dt); % remove one sample at the end ( dt) to avoid duplicate with next segment first point
a= 5*exp(-t/0.0007);
a(1) = 0;
b=1*exp(-t/0.0007);
b=flip(b);
y = a+b;
figure(1)
plot(t,y,'b');
% create repetitions of the signal
rep = 5; % repetitions
y_rep = [];
for k = 1:rep
y_rep = [y_rep y*(-1)^k];
end
t_rep = (0:numel(y_rep)-1)*dt;
figure(2)
plot(t_rep,y_rep,'b');
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