GNSS satellite transmit power and its impact on orbit determination

被引：113

作者：

Steigenberger, Peter ^{[1
]}

Thoelert, Steffen ^{[2
]}

Montenbruck, Oliver ^{[1
]}

机构：

[1] Deutsch Zentrum Luft & Raumfahrt DLR, German Space Operat Ctr GSOC, Munchener Str 20, D-82234 Wessling, Germany

[2] Deutsch Zentrum Luft & Raumfahrt DLR, Inst Commun & Nav IKN, Munchener Str 20, D-82234 Wessling, Germany

来源：

JOURNAL OF GEODESY | 2018年 / 92卷 / 06期

关键词：

Antenna thrust; EIRP; GPS; GLONASS; Galileo; BeiDou; GPS BLOCK IIR; ANTENNA PANEL; RADIATION; NAVIGATION; SIGNAL; PATTERN;

D O I：

10.1007/s00190-017-1082-2

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Antenna thrust is a small acceleration acting on Global Navigation Satellite System satellites caused by the transmission of radio navigation signals. Knowledge about the transmit power and the mass of the satellites is required for the computation of this effect. The actual transmit power can be obtained from measurements with a high-gain antenna and knowledge about the properties of the transmit and receive antennas as well as losses along the propagation path. Transmit power measurements for different types of GPS, GLONASS, Galileo, and BeiDou-2 satellites were taken with a 30-m dish antenna of the German Aerospace Center (DLR) located at its ground station in Weilheim. For GPS, total L-band transmit power levels of 50-240 W were obtained, 20-135 W for GLONASS, 95-265 W for Galileo, and 130-185 W for BeiDou-2. The transmit power differs usually only slightly for individual spacecraft within one satellite block. An exception are the GLONASS-M satellites where six subgroups with different transmit power levels could be identified. Considering the antenna thrust in precise orbit determination of GNSS satellites decreases the orbital radius by 1-27 mm depending on the transmit power, the satellite mass, and the orbital period.

引用

页码：609 / 624

页数：16

共 78 条

[31] Cospas-Sarsat LEO and GEO: Satellite distress and safety systems (SDSS) [J].