Signal processing questions
1.A signal that is discrete in the time domain is what in the frequency domain?
2.When a continuous signal is sampled by ideal impulses, by what factor is its spectrum scaled?
3.The DFT of a signal consisting of 1024 samples is found. If the spacing of the time samples is 1ms, what frequency is associated with the frequency domain sample F124?
4. When the DFT of a signal consisting of 512 real samples is found, which frequency domain samples must be real?
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