<?xml version="1.0" encoding="UTF-8"?>
<!-- generator="FeedCreator 1.8" -->
<?xml-stylesheet href="https://wortel.tty32.org/lib/exe/css.php?s=feed" type="text/css"?>
<rdf:RDF
    xmlns="http://purl.org/rss/1.0/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
    xmlns:dc="http://purl.org/dc/elements/1.1/">
    <channel rdf:about="https://wortel.tty32.org/feed.php">
        <title>wortel dsp</title>
        <description></description>
        <link>https://wortel.tty32.org/</link>
        <image rdf:resource="https://wortel.tty32.org/lib/tpl/dokuwiki/images/favicon.ico" />
       <dc:date>2026-05-14T11:09:43+00:00</dc:date>
        <items>
            <rdf:Seq>
                <rdf:li rdf:resource="https://wortel.tty32.org/doku.php?id=dsp:inversezxfer&amp;rev=1662032649&amp;do=diff"/>
                <rdf:li rdf:resource="https://wortel.tty32.org/doku.php?id=dsp:z_xfer&amp;rev=1662032649&amp;do=diff"/>
            </rdf:Seq>
        </items>
    </channel>
    <image rdf:about="https://wortel.tty32.org/lib/tpl/dokuwiki/images/favicon.ico">
        <title>wortel</title>
        <link>https://wortel.tty32.org/</link>
        <url>https://wortel.tty32.org/lib/tpl/dokuwiki/images/favicon.ico</url>
    </image>
    <item rdf:about="https://wortel.tty32.org/doku.php?id=dsp:inversezxfer&amp;rev=1662032649&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-09-01T13:44:09+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>dsp:inversezxfer</title>
        <link>https://wortel.tty32.org/doku.php?id=dsp:inversezxfer&amp;rev=1662032649&amp;do=diff</link>
        <description>Inverse Z transformatie

Transformeer naar tijd-domein:

$$
y[z] = \frac{2}{ (z-1) \cdot (z+0.5) }
$$

Prototype uit tabel:

$$
\frac{ z(1-a) }{ (z-a)(z-1) }
$$

A = 

$$
a= -\frac{1}{2}
$$

Wordt:

$$
\frac{z \cdot \frac{3}{2} }{ (z+\frac{1}{2}) (z-1) }
$$

Volgende stap (?)

$$
\frac{1}{z}  \cdot  \frac{z \cdot \frac{3}{2} }{ (z+\frac{1}{2}) (z-1) } \cdot \frac{4}{3}
$$

Volgende stap kapt alles voor n=0 af 

$$
y[n]  =  \frac{4}{3}  \cdot  (1-(-\frac{1}{2}) ^ {n}) \cdot  u[n]
$$

Volgende sta…</description>
    </item>
    <item rdf:about="https://wortel.tty32.org/doku.php?id=dsp:z_xfer&amp;rev=1662032649&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2022-09-01T13:44:09+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>dsp:z_xfer</title>
        <link>https://wortel.tty32.org/doku.php?id=dsp:z_xfer&amp;rev=1662032649&amp;do=diff</link>
        <description>Z Transformatie

Opgave 4.13

a) Complete onderdrukking bij $$ \Omega = 0 $$

Dus een nulpunt precies op de cirkelrand:

$$
\begin{split} 
z &amp;= e^{j \cdot 0} \\
&amp;= \cos {0} + j \sin{0} \\
&amp;= 1
\end{split} 
$$

b) Complete onderdrukking bij $$ \Omega = \frac{\pi}{3} $$

Hieruit volgt:

$$
\begin{split}
z &amp;= e^{j\frac{\pi}{3}} \\
&amp;= \cos{\frac{\pi}{3}} + j \sin{\frac{\pi}{3}} \\
&amp;= \frac{1}{2} + j \frac{1}{2} \sqrt{3} 
\end{split}
$$

c) Een nauwe doorlaatband bij $$ \Omega = \frac{2\pi}{3} $$ als…</description>
    </item>
</rdf:RDF>
