causal systems!!

kashmirihasan

kashmirihasan

@kashmirihasan-apWWK0 Oct 26, 2024
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!

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  • nenuadwani

    nenuadwani

    @nenuadwani-pb4lOD Oct 24, 2010

    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

    @d-vipul-wP6Syg Oct 25, 2010

    Hey all,

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

    Regards,
    VIPUL
  • arjuna

    arjuna

    @arjuna-tZoDLJ Oct 25, 2010

    it is used....in signal processing.... analog or digital...
    u take example lpw pass filter....go through it...u'll...get ur answer... 😀
  • d_vipul

    d_vipul

    @d-vipul-wP6Syg Oct 26, 2010

    Thanks......

    Regards,
    VIPUL
  • Munguti

    Munguti

    @munguti-MnxkmE Oct 26, 2010

    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(n<n1) but not future inputs(n>n1). 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

    @nenuadwani-pb4lOD Oct 27, 2010

    how are these systems used in signal processing
  • Munguti

    Munguti

    @munguti-MnxkmE Nov 3, 2010

    Digital filters that are not real time, speech sythesis, speech recognition