What does this notation mean? Double arrow with $z$ above











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I am reading a paper about digital filtering (for the very first time) and I found this notation (double arrow with $z$ above) which I do not quite understand.



Could you please give me some hint?




Defining the inverse convolution operator $(b_1^n)^{-1}(k) stackrel{z}{longleftrightarrow} 1 / B_1^n(z)$, the solution is found by inverse filtering (cf. [97])











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  • 2




    Does it make sense if it is a Z-transform? en.wikipedia.org/wiki/Z-transform
    – Kusma
    Nov 26 at 10:00










  • indeed, it makes sense! I wasn't aware of the existence of such a transform, I thought that they were dealing with Discrete Time Fourier Transform. You can post it as an answer.
    – Ramiro Scorolli
    Nov 26 at 10:04















up vote
1
down vote

favorite












I am reading a paper about digital filtering (for the very first time) and I found this notation (double arrow with $z$ above) which I do not quite understand.



Could you please give me some hint?




Defining the inverse convolution operator $(b_1^n)^{-1}(k) stackrel{z}{longleftrightarrow} 1 / B_1^n(z)$, the solution is found by inverse filtering (cf. [97])











share|cite|improve this question




















  • 2




    Does it make sense if it is a Z-transform? en.wikipedia.org/wiki/Z-transform
    – Kusma
    Nov 26 at 10:00










  • indeed, it makes sense! I wasn't aware of the existence of such a transform, I thought that they were dealing with Discrete Time Fourier Transform. You can post it as an answer.
    – Ramiro Scorolli
    Nov 26 at 10:04













up vote
1
down vote

favorite









up vote
1
down vote

favorite











I am reading a paper about digital filtering (for the very first time) and I found this notation (double arrow with $z$ above) which I do not quite understand.



Could you please give me some hint?




Defining the inverse convolution operator $(b_1^n)^{-1}(k) stackrel{z}{longleftrightarrow} 1 / B_1^n(z)$, the solution is found by inverse filtering (cf. [97])











share|cite|improve this question















I am reading a paper about digital filtering (for the very first time) and I found this notation (double arrow with $z$ above) which I do not quite understand.



Could you please give me some hint?




Defining the inverse convolution operator $(b_1^n)^{-1}(k) stackrel{z}{longleftrightarrow} 1 / B_1^n(z)$, the solution is found by inverse filtering (cf. [97])








convolution spline






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edited Nov 26 at 10:15









user302797

19.4k92252




19.4k92252










asked Nov 26 at 9:56









Ramiro Scorolli

64513




64513








  • 2




    Does it make sense if it is a Z-transform? en.wikipedia.org/wiki/Z-transform
    – Kusma
    Nov 26 at 10:00










  • indeed, it makes sense! I wasn't aware of the existence of such a transform, I thought that they were dealing with Discrete Time Fourier Transform. You can post it as an answer.
    – Ramiro Scorolli
    Nov 26 at 10:04














  • 2




    Does it make sense if it is a Z-transform? en.wikipedia.org/wiki/Z-transform
    – Kusma
    Nov 26 at 10:00










  • indeed, it makes sense! I wasn't aware of the existence of such a transform, I thought that they were dealing with Discrete Time Fourier Transform. You can post it as an answer.
    – Ramiro Scorolli
    Nov 26 at 10:04








2




2




Does it make sense if it is a Z-transform? en.wikipedia.org/wiki/Z-transform
– Kusma
Nov 26 at 10:00




Does it make sense if it is a Z-transform? en.wikipedia.org/wiki/Z-transform
– Kusma
Nov 26 at 10:00












indeed, it makes sense! I wasn't aware of the existence of such a transform, I thought that they were dealing with Discrete Time Fourier Transform. You can post it as an answer.
– Ramiro Scorolli
Nov 26 at 10:04




indeed, it makes sense! I wasn't aware of the existence of such a transform, I thought that they were dealing with Discrete Time Fourier Transform. You can post it as an answer.
– Ramiro Scorolli
Nov 26 at 10:04










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It is a Z transform. Just like Fourier transform, it turns convolutions into multiplications, so it can be used to undo convolutions.






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    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    1
    down vote



    accepted










    It is a Z transform. Just like Fourier transform, it turns convolutions into multiplications, so it can be used to undo convolutions.






    share|cite|improve this answer

























      up vote
      1
      down vote



      accepted










      It is a Z transform. Just like Fourier transform, it turns convolutions into multiplications, so it can be used to undo convolutions.






      share|cite|improve this answer























        up vote
        1
        down vote



        accepted







        up vote
        1
        down vote



        accepted






        It is a Z transform. Just like Fourier transform, it turns convolutions into multiplications, so it can be used to undo convolutions.






        share|cite|improve this answer












        It is a Z transform. Just like Fourier transform, it turns convolutions into multiplications, so it can be used to undo convolutions.







        share|cite|improve this answer












        share|cite|improve this answer



        share|cite|improve this answer










        answered Nov 26 at 10:33









        Kusma

        3,7331219




        3,7331219






























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