doubt in time shifting the signal

Discussion in 'Homework Help' started by bhuvanesh, Feb 17, 2015.

  1. bhuvanesh

    Thread Starter Member

    Aug 10, 2013
    268
    2
    IMG_20150217_234825140.jpg

    i am experiencing problem in time shift when the signal is in negative axis .Help me solve this.Thank you in advance
     
  2. shteii01

    AAC Fanatic!

    Feb 19, 2010
    3,397
    497
    f(t) and w(t) are the same. But they are located in different places on the t axis.

    If you shift f(t) 2 places to the right, f(t) becomes w(t). So. w(t)=f(t-2)

    The general formula (straight from the first chapter of my textbook) is this:
    w(t)=f(t-T)
    - if T is positive, the signal is shifted right (delayed).
    - if T is negative, the signal is shifted left (advanced).



    If your textbook can not explain shifting, then you really need to be afraid of convolution.
     
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  3. bhuvanesh

    Thread Starter Member

    Aug 10, 2013
    268
    2
    got it
     
  4. glaxy

    New Member

    Feb 23, 2015
    1
    1
    only have basic skills with PLC programming. I think it might be the FX PLC ? I have the first few lines however I'm unsure on the sensor part to stop the conveyor belt and restart. Thanks for the reply:p smug post have good!!!!!!!!!!!!!!!!!


    adil
     
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