Signal sampled at 5000 samples/s

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Discussion Overview

The discussion revolves around determining the time values of samples from a signal sampled at 5000 samples per second, specifically focusing on the first four samples starting at t=0. Participants are trying to clarify the sampling process and the corresponding time values for each sample.

Discussion Character

  • Homework-related
  • Mathematical reasoning
  • Conceptual clarification

Main Points Raised

  • One participant presents a signal defined as V=10 sin(8500t) and expresses confusion about how to find the first four sample values.
  • Another participant calculates the time interval between samples as 1/5000 seconds.
  • There is a discussion about the time values for subsequent samples, with participants attempting to clarify what t represents at each sample point.
  • Participants express uncertainty about the correct time values for the samples, with some suggesting t=1 and others correcting that interpretation.
  • A hint is provided to think about dividing time into equal slices to understand the progression of t values.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the correct time values for the samples, and there is ongoing confusion about the sampling process and the corresponding time calculations.

Contextual Notes

There are unresolved assumptions regarding the interpretation of time intervals and how they relate to the sampling of the signal. The discussion reflects varying levels of understanding among participants.

Who May Find This Useful

This discussion may be useful for individuals studying signal processing, sampling theory, or those needing clarification on time intervals in sampled signals.

qwerty321
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ok i will post in here
I have a signal sampled at 5000 samples/s and I need to find the real values of the first 4 samples starting at t=0..
the signal is:

V=10 sin(8500t)
i do not understand the question..what shall i do?
 
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If there are 5000 samples in 1 second, how much time elapses in between samples?
 


1/5000
 


Okay, yes.

The first sample is at t=0.
Based on your answer of 1/5000, what is t for the next sample after that?

What is the signal at those values of t?
 


t is 2(1/5000) at t=1?
 


No.

You get the first sample at t=0.
Then 1/5000 of time goes by, and it's time to get sample #2. What time is it? I.e., t=_____?
 


t=1?
 


No, t=1 when 1 second has gone by.
 


Oh, I'm going to go offline soon, so you'll be on your own for a while.
 
  • #10


i am lost..could you please resume..at t=0 we have 1/5000?
 
  • #11


If you split 10 seconds into 10 different equal time slices, what is "t" at the beginning of each time slice, if "t" is in seconds?

Hint: t=0 is the start of the first time slice...what would t be for the start of the 2nd, 3rd, etc...
 

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