Sampled aperiodic rectangle
y = rectpuls(t)
y = rectpuls(t,w)
y = rectpuls(t) returns
a continuous, aperiodic, unity-height rectangular pulse at the sample
times indicated in array
t, centered about
0 and with a default
width of 1. Note that the interval of nonzero amplitude is defined
to be open on the right, that is,
y = rectpuls(t,w) generates
a rectangle of width
rectpuls is typically used in conjunction
with the pulse train generating function
Generate 200 ms of a rectangular pulse with a sample rate of 10 kHz and a width of 20 ms.
fs = 10e3; t = -0.1:1/fs:0.1; w = 20e-3; x = rectpuls(t,w);
Generate two copies of the same pulse:
One displaced 45 ms into the past.
tpast = -45e-3; xpast = rectpuls(t-tpast,w);
One displaced 60 ms into the future and half as wide.
tfutr = 60e-3; xfutr = rectpuls(t-tfutr,w/2);
Plot the original pulse and the two copies on the same axes.
plot(t,x,t,xpast,t,xfutr) ylim([-0.2 1.2])