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magnetra
Joined: 21 Apr 2005
Posts: 261
Helped: 3
Location: 27.45N, 85.20E KTM, NP
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 22 Apr 2008 6:42 Causality |
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It the following system causal??
y(t) = ∫x(t)dt ; Integration range: 0 to T
Regards
M
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vadkudr
Joined: 12 Jul 2005
Posts: 118
Helped: 12
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| 22 Apr 2008 8:49 Re: Causality |
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When integrating right part
∫x(t)dt
variable t is disappeared. So you get only fixed number as a result.
Your question is incorrect.
Did you meaned y(t)∫x(s)ds ; Integration range: 0 to t ???
The this is causal system named integrator with reset function. Reset is performed at t=0.
Added after 26 seconds:
y(t) =∫x(s)ds
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magnetra
Joined: 21 Apr 2005
Posts: 261
Helped: 3
Location: 27.45N, 85.20E KTM, NP
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| 22 Apr 2008 9:35 Causality |
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I got your point. Thank you vadkudr.
M
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bhq
Joined: 11 Jun 2008
Posts: 81
Helped: 7
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| 17 Jun 2008 13:46 Re: Causality |
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Causal System:
The output at any time t depend on the past or current input and for the output depencency it depends on the past output only
your sysrem is not looking spacefic, it can be causal and can be non causal.
for causal your output at 't' useses only the input from 0 to 't'. I mean it donot use any input greater than 't'. ie feauture input.
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