¥A. one-to-one correspondence exists
between the representation of a given signal in the time domain and in the
frequency domain.
¥B. The character of the power spectrum allows us to determine if a
signal is aperiodic or periodic in the time domain. A periodic signal has a discrete frequency spectrum while an
aperiodic signal has a continuous spectrum.
¥C. The amplitude spectrum and phase spectrum together allow us to
reconstruct the signal in the time domain. If only the amplitude spectrum or power spectrum is
available, it is possible to make some conclusions about features of the signal
in the time domain.
¥D. The presence
of a DC offset means that the signal has a constant component, and the entire
signal is shifted along the voltage axis in the time domain.
¥I. If all harmonics divisible by a number n are missing for a rectangular periodic
signal, the rectangular signal in the time domain has a duty cycle d equal to 1/n .
¥F. The power
spectrum allows us to determine the full bandwidth and the effective bandwidth
of the signal.
¥G. Bandwidth
refers to the range of frequencies represented in an analog signal. The bandwidth of an analog signal
determines the maximum sampling rate for a digital signal that is accurately
transmitted via this analog signal.