Question

EEG signals measures some brain activities. Beta Waves (12 to 38 HZ) dominate our normal
waking state of consciousness when attention is directed towards cognitive tasks. Beta is a ‘fast’
activity, present when we are alert, attentive, engaged in problem solving, judgment, decision
making, or focused mental activity.

a) Design a Butterworth filter to pass the Beta-waves that will have maximum attenuation 0.5
dB in the beta waves band and minimum attenuation of 50 dB in the stopband using Matlab.

b) Run the simulations to illustrate the single tone sine waves responses of the filter in the
passband and stopband

Answer 1

simulation results

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