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An EEG signal from a healthy adult contains clinically relevant frequencies in the range of 0 to 45 Hz. The frequency bands are generally grouped as delta (0.5-4 Hz), theta (4.5-8 Hz), alpha (8.5-13 Hz), and gamma (30-45 Hz), with a predominant power in the beta/gamma range in the active waking state. It is also known that this signal contains a 60 Hz power line interference component. Higher frequencies in the EEG frequency spectrum area are also present but are known to be related to motion artifacts, ocular-motor activity, as well as other noise sources. Using your knowledge of signal processing, identify:
a) Would anti-aliasing filtering be required? If so, what would you set your cutoff frequency to be?
b) Select the appropriate sampling frequency for this signal, such that both the frequency and time domain representations of the digital signal are accurate.
c) If you choose to process only 10 seconds worth of data, what is the resulting frequency resolution?
Four frequencies are applied at the input of a non-linear amplifier. Write down all of the frequency components at the output of the non-linear device. Write down only the first three harmonics. Frequencies of 1205Khz, 1200Khz, 1195Khz
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in a given byte-addressable computer, memory location 10000Hto 9FFFFH are avaliable for user programs. the first location is 10000H and the last location is 9FFFFH. calculate the following: the total number of bytes available (in decimal)
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A ‘c-core' inductor has a total air-gap length of 3 mm and a cross-sectional area of 100 cm2. Two coils are wound on the core - one of 500-turns and another of 250-turns. Assuming the iron reluctance, fringing flux and leakage flux to be negligibl..
how to evaluate power dissipated in the components of an RLC series circuit by using matlab software?
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