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Future Plan of QZSS - IGS

Future Plan of QZSS - IGS

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<strong>QZSS</strong> Functional Capability 1<br />

GPS Complementary <br />

<strong>QZSS</strong> improves positioning<br />

availability time<br />

Navigation signals sent from high<br />

elevation will improve the time<br />

percentage <strong>of</strong> positioning availability<br />

from 90 % (GPS only) to 99.8 % * (GPS<br />

+ <strong>QZSS</strong>.)<br />

GPS<br />

×<br />

QZS<br />

×<br />

* The time percentage that the position dilution <strong>of</strong><br />

precision (PDOP) is less than 6 when a satellite<br />

whose elevation angle is 20 degrees or over is<br />

used for positioning calculation. <br />

3

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