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causal systems!!

Question asked by kashmirihasan in #Coffee Room on Oct 24, 2010
kashmirihasan
kashmirihasan 路 Oct 24, 2010
Rank D2 - MASTER
hi can anyone tell me what are causal systems ? i can`t seem to understand it in wikipedia..please try to give simple examples as i am just a beginner in this subject! Posted in: #Coffee Room
nenuadwani
nenuadwani 路 Oct 24, 2010
Rank D2 - MASTER
causal systems are the systems which give the output based on the previous and present inputs. these systems do not have output dependency on the outputs after a specific time interval and this time interval depends on the system requirements.
d_vipul
d_vipul 路 Oct 25, 2010
Rank C3 - EXPERT
Hey all,

where it is used????? and why?????
Please some one tell me..............

Regards,
VIPUL
arjuna
arjuna 路 Oct 25, 2010
Rank E2 - BEGINNER
it is used....in signal processing.... analog or digital...
u take example lpw pass filter....go through it...u'll...get ur answer... 馃榾
d_vipul
d_vipul 路 Oct 26, 2010
Rank C3 - EXPERT
Thanks......

Regards,
VIPUL
Munguti
Munguti 路 Oct 27, 2010
Rank C3 - EXPERT
nenuadwani
causal systems are the systems which give the output based on the previous and present inputs. these systems do not have output dependency on the outputs after a specific time interval and this time interval depends on the system requirements.
In Causal systems the output at a discreet time n1 depends on present inputs(at n1) and past inputs(nn1). This might confuse you but you should realise that some sytems work on stored data and hence at a specific time they know what the future input will be.
nenuadwani
nenuadwani 路 Oct 28, 2010
Rank D2 - MASTER
how are these systems used in signal processing
Munguti
Munguti 路 Nov 4, 2010
Rank C3 - EXPERT
Digital filters that are not real time, speech sythesis, speech recognition

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