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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Nie, reagoval som na onych 100MS/s<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">j.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> Hw-list [mailto:hw-list-bounces@list.hw.cz]
<b>On Behalf Of </b>Daniel Valuch<br>
<b>Sent:</b> Thursday, September 03, 2015 10:21 AM<br>
<b>To:</b> HW-news<br>
<b>Subject:</b> Re: digitalni zpracovani signalu z anteny<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">V nasom pripade sa bavime o spracovavani AM/PM signalu o frekvencii 77kHz s datovym tokom 1Bd. Myslim, ze to sa da naprogramovat aj do hrdzaveho klinca (c) wek.<br>
b.<br>
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On 03/09/2015 09:48, Zuffa Jan wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Vyrobcovia udavaju efective resolution kde si treba ale dat pozor</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">ci je odvodene rozlisenie od rms alebo od Vpp. Dalej</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">vypocet 12*6 asi nie je uplne spravny pretoze aj ked z pohladu prevodniku</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">je pravdivy z pohladu signalu je jeden bit pouzity na polaritu +/- signalu</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hoci moznosti digitalneho spracovania signalu su nedozierne (kto raz skusi uz sa k analogu nikdy nevrati
</span><span style="font-size:11.0pt;font-family:Wingdings;color:#1F497D">J</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> )</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">vsetko zavisi hlavne od toho aky je k dispozicii vypoctovy vykon.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Balu pise ze demodulacia hocicoho je hracka. No v celku ma aj pravdu lebo v pripade am/fm</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">je to naozaj jeden vzorec. U digitalnych formatov je potrebna uz ale urcita uroven znalosti,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">napriek tomu sa to da bezpecne zvladnut bez studovania matematickych hieroglyfov
</span><span style="font-size:11.0pt;font-family:Wingdings;color:#1F497D">J</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Je tu este jedna zasadna vec a to je spracovanie vo vektorovom formate a od toho zavisi hw</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">dizajd front-endu. Ak mate vektor, viete aktualnu amplitudu, fazu, neexistuje nieco ako</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">signal blizko Fs/2 neviete zmerat, pri zmiesavani si sa signal posuva, nevytvara sa suctova a rozdielova zlozka</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">a vypocty ako FFT su nativne v komplexnom formate.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Spracovavat 100MS/s asi tiez nezvladne kde aky procesor.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">A nakoniec cievok a filtrov sa nikdy nezbavite (cievky je mozne nahradit saw filtrami a tak)</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">mozu byt sucastou DPS ale vzdy tam budu.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">j.</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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