GPSからGNSS へ - トリンブルパートナーズ関東

1 GPS GNSS GNSS GPS GPS L1 = (19cm)GPS L2 = (24cm) GPS L1 C/A P(Y) GPS L2 P(Y) C/A DGPS GPS RTK RTKVRS FKP PPK GPS L1 = (19cm)GPS L2 = (24cm) GPS L1 C/A P(Y) GPS L2 P(Y) GNSS CDMA FDMACode Division Multiple AccessFrequency Division Multiple Access GPS( )Global Positioning System6 31 CDMA L1 L2 L1 C/A P(Y) L2 P(Y)GLONASS( )GLObal'naya NAvigatsionnaya Sputnikovaya Sistema3 22 FDMA L1(1600 MHz )L2(1250 MHz )GLONASS( )GLObal'naya NAvigatsionnaya Sputnikovaya Sistema GALILEO(EU) 2 GIOVE-A E1 E6 GIOVE-B E1 E5 GNSS GPS Block IIR-M (2005 1 )8 L2C ( L2 )M ( )L1L2 GPS L1 = (19cm)GPS L2 = (24cm) GPS L1 C/A M P(Y)

2 GPS L2 L2C M P(Y)0%20%40%60%80%100%120%5678L2 L2 L2C 100 L2C GPS L5 ( ) Block IIF (2010 1 )2 2011 6 23 2011 4 L1 = = = Spaceflight Now Web L1 L2 ( )L1 L5 ( )L2 L5 ( ) L2 L5 GPS 2020 P(Y) GPS GLONASS Spaceflight Now Web GLONASS-M 2010 12 12 L2 2011 3 3 GLONASS-K 2010 12 28 2011 2 26 L3( ) CDMA GALILEO 2014 3 30 ( 3 ) E1(=L1 )E5b( )E5a(=L5 )GALILEO IOV( )2011 2 Spaceflight Now Web /Compass( ) -2/Compass System 5 27 3 2020 QZSS QZSS ( )Quasi-Zenith Satellite System GPS 3 23 56 42164km 135 5 L1( ) C/A L1C L1-SAIF L2( ) L2C L5( ) L5 LEX( ) LEXQZSS ( )

3 Quasi-Zenith Satellite SystemQZS 2010 9 11 10 26 12 15 PRN 193 183