fx(t) is 10 ms), but x(t) is burr e is white Guassian noise and stimuli given in the s(t), which
fx(t) is 10 ms), but x(t) is burr e is white Guassian noise and stimuli given in the s(t), which
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Transcribed Image Text:11
11. In Electrocogligraphy (ECOG) the signal of interest is similar to what is shown below, x(t)
(the enitre duration of x(t) is 10 ms), but x(t) is burried under the noise in the recorded signal,
y(t). Assume the noise is white Guassian noise and the SNR=-30 dB. Given that each x(t) is
generated due to the stimuli given in the s(t), which are a series of impulses, each 2 sec apart,
how long should be the minimum record of y(t) in order to retreive x(t) by averaging method?
x(t)
Futt
-0.200
S(t
Line
2
4
6 8
Time (sec)
st
*******
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