The art of delaying (discrete)
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Hi everyone
Simple newbi question on discrete signals. How can a discrete signal of sample time T can be delayed by a delay = T/4 ?
I am trying to use the delay block but I can only delay by an integer of the sample time. I am afraid my vision of "delay" is not correct.
Thank you very much for any kind of help on that.
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Azzi Abdelmalek
2013 年 3 月 8 日
Set the sample time of your unit delay block to T/4, you will get a signal containing 4x number of original samples, delayed with T/4
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Azzi Abdelmalek
2013 年 3 月 8 日
Suppose you have signal y1 with sample time 1 ans time simulation is 0 to 10, that means you have 11 samples
When you pass a signal y1 through a unit delay block with T/4 you will get a signal y2 with 41 sample. which means:
The second sample of y1 corresponds to 1 sec
The second sample of y2 corresponds to 0.25 sec
If you want to check the result you should compare the signal y2 with the signal y3 which is obtained by passing y1 through a zoh block with sample time=T/4
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