. An analog voltage waveform is sampled with sampling frequency
1kHz
to obtain a discrete-time signal \[ x(n)=\sin (0.1 \pi n) . \] 10 1. Data Acquisition Board (a) Find the original analog voltage waveform assuming that the sampling frequency was high enough to prevent aliasing. (b) If aliasing might have occurred, it is not possible to identify the original analog voltage waveform uniquely from the sampled data. Various different analog voltage waveforms could have given rise to the observed sampled data. Characterize all possible analog voltage waveforms which would have resulted in the observed sampled signal.
