GNSS satellite transmit power and its impact on orbit determination   总被引：1，自引：0，他引：1  

Peter Steigenberger  Steffen Thoelert  Oliver Montenbruck 《Journal of Geodesy》2018,92(6):609-624

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.  相似文献   

The mixed-receiver BeiDou inter-satellite-type bias and its impact on RTK positioning   总被引：1，自引：0，他引：1  

Nandakumaran Nadarajah  Peter J. G. Teunissen  Jean-Marie Sleewaegen  Oliver Montenbruck 《GPS Solutions》2015,19(3):357-368

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Zn and Pb mobility during metamorphism of sedimentary rocks and potential implications for some base metal deposits     

Johannes Hammerli  Carl Spandler  Nicholas H.S. Oliver  Paolo Sossi  Gregory M Dipple 《Mineralium Deposita》2015,50(6):657-664

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A multidomain discretization of the Richards equation in layered soil     

Heiko Berninger  Ralf Kornhuber  Oliver Sander 《Computational Geosciences》2015,19(1):213-232

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Luminosity functions for galaxies and quasars in the Spitzer Wide-area Infrared Extragalactic Legacy Survey     

T. S. R. Babbedge  M. Rowan-Robinson  M. Vaccari  J. A. Surace  C. J. Lonsdale  D. L. Clements  F. Fang  D. Farrah  A. Franceschini  E. Gonzalez-Solares  E. Hatziminaoglou  C. G. Lacey  S. Oliver  N. Onyett  I. Pérez-Fournon  M. Polletta  F. Pozzi  G. Rodighiero  D. L. Shupe  B. Siana  H. E. Smith 《Monthly notices of the Royal Astronomical Society》2006,370(3):1159-1180

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A study of the 15-μm quasars in the ELAIS N1 and N2 fields     

A. Afonso-Luis  E. Hatziminaoglou  I. Pérez-Fournon  E. A. González-Solares  M. Rowan-Robinson  M. Vaccari  C. Lari  S. Serjeant  S. Oliver  A. Hernán-Caballero  F. M. Montenegro-Montes 《Monthly notices of the Royal Astronomical Society》2004,354(4):961-970

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Morphological studies of the Spitzer Wide-Area Infrared Extragalactic survey galaxy population in the UGC 10214 Hubble Space Telescope/Advanced Camera for Surveys field     

E. Hatziminaoglou  P. Cassata  G. Rodighiero  I. Pérez-Fournon  A. Franceschini  A. Hernán-Caballero  F. M. Montenegro-Montes  A. Afonso-Luis  T. Jarrett  G. Stacey  C. Lonsdale  F. Fang  S. Oliver  M. Rowan-Robinson  D. Shupe  H. E. Smith  J. Surace  C. K. Xu  E. A. González-Solares 《Monthly notices of the Royal Astronomical Society》2005,364(1):47-58

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The SCUBA 8-mJy survey – I. Submillimetre maps, sources and number counts     

S. E.Scott  M. J.Fox  J. S.Dunlop  S.Serjeant  J. A.Peacock  R. J.Ivison  S.Oliver  R. G.Mann  A.Lawrence  A.Efstathiou  M.Rowan-Robinson  D. H.Hughes  E. N.Archibald  A.Blain  M.Longair 《Monthly notices of the Royal Astronomical Society》2002,331(4):817-838

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MOSSBAUER STUDY OF THE ALLENDE METEORITE     

Frederick W. Oliver  Edet E. Isuk  Clive Wynter 《Meteoritics & planetary science》1984,19(1):25-27

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A review of pollutants in the sea-surface microlayer (SML): a unique habitat for marine organisms     

Wurl O  Obbard JP 《Marine pollution bulletin》2004,48(11-12):1016-1030

Boundary layers between different environmental compartments represent critical interfaces for biological, chemical and physical processes. The sea-surface microlayer (uppermost 1-1000 microm layer) forms the boundary layer interface between the atmosphere and ocean. Environmental processes are controlled by the SML, and it is known to play a key role in the global distribution of anthropogenic pollutants. Due to its unique chemical composition, the upper organic film of the SML represents both a sink and a source for a range of pollutants including chlorinated hydrocarbons, organotin compounds, petroleum hydrocarbons, polycyclic aromatic hydrocarbons (PAH) and heavy metals. These pollutants can be enriched in the SML by up to 500 times relative to concentrations occurring in the underlying bulk water column. The SML is also a unique ecosystem, serving as an important habitat for fish eggs and larvae. Concentration ranges and enrichment factors of pollutants in the SML in different areas of the world's oceans have been critically reviewed, together with available toxicity data for marine biota found within the SML. Overall, the SML is highly contaminated in many urban and industrialized areas of the world, resulting in severe ecotoxicological impacts. Such impacts may lead to drastic effects on the marine food web and to fishery recruitment in coastal waters. Studies of the toxicity of fish eggs and larvae exposed to the SML contaminants have shown that the SML in polluted areas leads to significantly higher rates of mortality and abnormality of fish embryos and larvae.  相似文献