- #1
BarryThomas89
- 3
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Hey guys, I'm trying to revise for a DSP exam I have this week and I'm looking at past papers I have. I've got the question, and the out and out answer but it doesn't show the workings so I'm struggling to find out how to get there;For the following periodic digital signal;
x[n]=1+cos(pi*n/3)+3 sin(pi*n/2)
i)How many samples are there in one period?
ii)Tabulate the values of x[n] over one complete period
The answer to i) is 8, and I've got the plot for ii) but getting there is just baffling me, so if anyone can shed some light on it, or point me to some reading material, it would be much appreciated.
Cheers.
x[n]=1+cos(pi*n/3)+3 sin(pi*n/2)
i)How many samples are there in one period?
ii)Tabulate the values of x[n] over one complete period
The answer to i) is 8, and I've got the plot for ii) but getting there is just baffling me, so if anyone can shed some light on it, or point me to some reading material, it would be much appreciated.
Cheers.