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<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'>Een klant van mij
maakt GPS systemen voor de scheepvaart<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'>met een worst
case nauwkeurigheid van 50 cm<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'>(hier gemeten 2-4
cm) , zonder aanvullende<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'>kosten (dus
alleen publiek GPS signaal).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'>Beetje te groot
voor op de fiets, en neemt ook<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'>teveel power op.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'>Ik weet ook niet
hoe dat werkt tussen bebouwing ...<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'>Wie weet er iets
van ontwikkelingen op dit<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'>punt van portable
receivers ???<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="FrutigerNextLT Regular"><span lang=NL
style='font-size:12.0pt;font-family:"FrutigerNextLT Regular"'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Regards,<br>
<br>
<br>
</span></font><font size=2 face=Arial><span style='font-size:10.0pt;font-family:
Arial'><o:p></o:p></span></font></p>
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face="Times New Roman"><span style='font-size:12.0pt'>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
talk-nl-bounces@openstreetmap.org [mailto:talk-nl-bounces@openstreetmap.org] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Danny Maas<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, June 18, 2007 10:16
AM<br>
<b><span style='font-weight:bold'>To:</span></b> OpenStreetMap NL discussion
list<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [OSM-talk-nl] GPS
strategie voor tracken</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Ik hoor hier een hoop
doppler/reflectie-problemen. Iets wat niet ongewoon is bij GPS-gebruik.<br>
Helaas hebben de meeste architecten nog nooit van GPS gehoord, of weten in
ieder geval niet hoe het werkt.<br>
Hierdoor worden er nogal veel reflecterende materialen gebruikt, die je GPS
niet echt fijn vinden. <br>
Hierdoor ontstaan de afwijking in nauwkeurigheid, en neemt je GPS een
gemiddelde positie, afhankelijk van richting en snelheid.<br>
De hoek om gaan is dan niet de actie waar je GPS op zit te wachten ;-)<br>
<br>
Een oplossing is om dezelfde straten van andere richtingen te benaderen. Je
hebt dan meteen GPS-tracks die elkaar overlappen. <br>
Het nadeel is dat dit minstens 2x zo veel kost.<br>
<br>
Groeten,<br>
<br>
Danny<br>
<br>
<br>
<o:p></o:p></span></font></p>
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