TY - GEN
T1 - GPS in mid-life with an international team of doctors
T2 - 23rd International Technical Meeting of the Satellite Division of the Institute of Navigation 2010, ION GNSS 2010
AU - Gao, Grace Xingxin
AU - Heng, Liang
AU - Wong, Gabriel
AU - Phelts, Eric
AU - Blanch, Juan
AU - Walter, Todd
AU - Enge, Per
AU - Erker, Stefan
AU - Thoelert, Steffen
AU - Meurer, Michael
PY - 2010
Y1 - 2010
N2 - With the launch of the first GPS IIF satellite, IIF-1 or SVN 62 on May 27, 2010. the U.S. GPS enters its mid-life. The IIF-1 satellite is the very first GPS satellite with an operable L5 payload. The IIF-1 L1 and L2 signals were turned on June 6, 2010. and were set "healthy" on August 27, 2010. The satellite started to transmit L5 signal on June 17, 2010. We formed an international team of doctors. We have been continuously observing the IIF-1 transmission using a variety of facilities since the satellite was launched. This paper shows our examination results of the IIF-1 satellite using our high gain parabolic dish antennas at Stanford USA and at Weilheim, Germany, as well as a global commercial receiver network. Our analyses of the IIF-1 satellite focus on the backward compatibility. In other words, the IIF-1 L1 and L2 signals need to be compatible with other existing satellites of older generation. We conclude that the IIF-1 L1 and L2 signals have a performance similar to other satellites in terms of range accuracy, ephemeris accuracy, signal waveform deformation, and code carrier divergence.
AB - With the launch of the first GPS IIF satellite, IIF-1 or SVN 62 on May 27, 2010. the U.S. GPS enters its mid-life. The IIF-1 satellite is the very first GPS satellite with an operable L5 payload. The IIF-1 L1 and L2 signals were turned on June 6, 2010. and were set "healthy" on August 27, 2010. The satellite started to transmit L5 signal on June 17, 2010. We formed an international team of doctors. We have been continuously observing the IIF-1 transmission using a variety of facilities since the satellite was launched. This paper shows our examination results of the IIF-1 satellite using our high gain parabolic dish antennas at Stanford USA and at Weilheim, Germany, as well as a global commercial receiver network. Our analyses of the IIF-1 satellite focus on the backward compatibility. In other words, the IIF-1 L1 and L2 signals need to be compatible with other existing satellites of older generation. We conclude that the IIF-1 L1 and L2 signals have a performance similar to other satellites in terms of range accuracy, ephemeris accuracy, signal waveform deformation, and code carrier divergence.
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M3 - Conference contribution
AN - SCOPUS:79959925788
SN - 9781617827358
T3 - 23rd International Technical Meeting of the Satellite Division of the Institute of Navigation 2010, ION GNSS 2010
SP - 1597
EP - 1604
BT - 23rd International Technical Meeting of the Satellite Division of the Institute of Navigation 2010, ION GNSS 2010
Y2 - 21 September 2010 through 24 September 2010
ER -