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












1














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
















1














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














1












1








1







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






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Nov 26 at 10:15









Saad

19.7k92252




19.7k92252










asked Nov 26 at 9:56









Ramiro Scorolli

655113




655113








  • 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










1 Answer
1






active

oldest

votes


















1














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





















    Your Answer





    StackExchange.ifUsing("editor", function () {
    return StackExchange.using("mathjaxEditing", function () {
    StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
    StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
    });
    });
    }, "mathjax-editing");

    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "69"
    };
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function() {
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled) {
    StackExchange.using("snippets", function() {
    createEditor();
    });
    }
    else {
    createEditor();
    }
    });

    function createEditor() {
    StackExchange.prepareEditor({
    heartbeatType: 'answer',
    autoActivateHeartbeat: false,
    convertImagesToLinks: true,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: 10,
    bindNavPrevention: true,
    postfix: "",
    imageUploader: {
    brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
    contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
    allowUrls: true
    },
    noCode: true, onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    });


    }
    });














    draft saved

    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3014129%2fwhat-does-this-notation-mean-double-arrow-with-z-above%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    1














    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


























      1














      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
























        1












        1








        1






        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

        3,7231319




        3,7231319






























            draft saved

            draft discarded




















































            Thanks for contributing an answer to Mathematics Stack Exchange!


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            Use MathJax to format equations. MathJax reference.


            To learn more, see our tips on writing great answers.





            Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


            Please pay close attention to the following guidance:


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            To learn more, see our tips on writing great answers.




            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3014129%2fwhat-does-this-notation-mean-double-arrow-with-z-above%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown





















































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown

































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown







            Popular posts from this blog

            Quarter-circle Tiles

            build a pushdown automaton that recognizes the reverse language of a given pushdown automaton?

            Mont Emei