need quick help with: (please give a brief description of how you came to your c
ID: 3557692 • Letter: N
Question
need quick help with: (please give a brief description of how you came to your conclusion, not just the answer. I want to try and understand the answer. For credit, thanks.)
A system samples a sinusoid of frequency 520 Hz at a rate of 100 Hz and writes the sampled signal to its output without further modification. Determine the frequency that the sampling system will generate in its output. A signal consists of only two sinusoids, one of 45 Hz and one of 25 Hz. This signal is sampled at a rate of 160 Hz. Find the first six positive frequencies that will be present in the replicated spectrum. A signal has a spectrum from 0 to 145 Hz, as shown below. It is sampled at a rate of 260 Hz. Find the region of the baseband spectrum that will become corrupted and unrecoverable even if an ideal "brickwall" filter is used for recovery.Explanation / Answer
answer 1)
520
answer 2)
25 45 115 135 185 205
45+25 = 70
45-25= 20
first component =25
second = 45
third = 45+70=115
fourth=115+20=135
fifth=115+70=185
sixth = 185+20=205
answer 3)
115-145 Hz
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