Determination of the ionospheric foF2 using a stand-alone GPS receiver

Abstract. The determination of magnetic declination angle entails finding two directions: geographic north and magnetic north. This paper deals with the former. The known way to do it by using the sun's calculable orientation in the sky is improved by using a device based on a WIDIF DIflux theodolite and split photocells positioned on its telescope ocular. Given the WIDIF accurate timing and location provided by the onboard GPS receiver, an astronomical computation can be effected to accurately and quickly determine the sun's azimuth and an auxiliary mark's azimuth. The precise sun's crossing of the split photocell, amplified by the telescope's magnification, allows azimuth accuracies of a few seconds of arc.

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Enhancing the kinematic precise orbit determination of low earth orbiters using GPS receiver clock modelling

Advances in Space Research ◽

10.1016/j.asr.2014.07.016 ◽

2014 ◽

Vol 54 (9) ◽

pp. 1901-1912 ◽

Cited By ~ 8

Author(s):

Yang Yang ◽

Xiaokui Yue ◽

Jianping Yuan ◽

Chris Rizos

Keyword(s):

Orbit Determination ◽

Precise Orbit Determination ◽

Gps Receiver ◽

Precise Orbit ◽

Receiver Clock

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Determination of global positioning system (GPS) receiver clock errors: impact on positioning accuracy

Measurement Science and Technology ◽

10.1088/0957-0233/20/7/075105 ◽

2009 ◽

Vol 20 (7) ◽

pp. 075105 ◽

Cited By ~ 16

Author(s):

Ta-Kang Yeh ◽

Cheinway Hwang ◽

Guochang Xu ◽

Chuan-Sheng Wang ◽

Chien-Chih Lee

Keyword(s):

Global Positioning System ◽

Positioning System ◽

Gps Receiver ◽

Positioning Accuracy ◽

Global Positioning ◽

Receiver Clock

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Real-time precise orbit determination of LEO satellites using a single-frequency GPS receiver: Preliminary results of Chinese SJ-9A satellite

Advances in Space Research ◽

10.1016/j.asr.2017.06.052 ◽

2017 ◽

Vol 60 (7) ◽

pp. 1478-1487 ◽

Cited By ~ 3

Author(s):

Xiucong Sun ◽

Chao Han ◽

Pei Chen

Keyword(s):

Real Time ◽

Orbit Determination ◽

Precise Orbit Determination ◽

Single Frequency ◽

Gps Receiver ◽

Preliminary Results ◽

Precise Orbit ◽

Leo Satellites

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Determining slack tide with a GPS receiver on an anchored buoy

Hydrology and Earth System Sciences ◽

10.5194/hess-18-2599-2014 ◽

2014 ◽

Vol 18 (7) ◽

pp. 2599-2613

Author(s):

M. Valk ◽

H. H. G. Savenije ◽

C. C. J. M. Tiberius ◽

W. M. J. Luxemburg

Keyword(s):

Real Time ◽

Gps Receiver ◽

Tidal Channels ◽

Salt Intrusion ◽

Tidal Propagation ◽

Novel Method ◽

Field Campaigns ◽

Flood Flow

Abstract. In this paper we present a novel method to determine the time of occurrence of tidal slack with a GPS receiver mounted on an anchored buoy commonly used to delineate shipping lanes in estuaries and tidal channels. Slack tide occurs when the tide changes direction from ebb to flood flow or from flood to ebb. The determination of this point in time is not only useful for shipping and salvaging, it is also important information for calibrating tidal models, for determining the maximum salt intrusion and for the further refinement of the theory on tidal propagation. The accuracy of the timing is well within 10 min and the method – able to operate in real time – is relatively cheap and easy to implement on a permanent basis or in short field campaigns.

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In-flight performance analysis of MEMS GPS receiver and its application to precise orbit determination of APOD-A satellite

Advances in Space Research ◽

10.1016/j.asr.2017.08.023 ◽

2017 ◽

Vol 60 (12) ◽

pp. 2723-2732 ◽

Cited By ~ 6

Author(s):

Defeng Gu ◽

Ye Liu ◽

Bin Yi ◽

Jianfeng Cao ◽

Xie Li

Keyword(s):

Performance Analysis ◽

Orbit Determination ◽

Precise Orbit Determination ◽

Flight Performance ◽

Gps Receiver ◽

Precise Orbit

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Phase Residual Estimations for PCVs of Spaceborne GPS Receiver Antenna and Their Impacts on Precise Orbit Determination of GRACE Satellites

Chinese Journal of Aeronautics ◽

10.1016/s1000-9361(11)60428-7 ◽

2012 ◽

Vol 25 (4) ◽

pp. 631-639 ◽

Cited By ~ 7

Author(s):

Jia TU ◽

Defeng GU ◽

Yi WU ◽

Dongyun YI

Keyword(s):

Orbit Determination ◽

Precise Orbit Determination ◽

Gps Receiver ◽

Precise Orbit ◽

Grace Satellites

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Semi-automatic sunshots with the WIDIF DIflux

10.5194/gi-2017-11 ◽

2017 ◽

Author(s):

Jean L. Rasson ◽

Olivier Hendrickx ◽

Jean-Luc Marin

Keyword(s):

The Sun ◽

Gps Receiver ◽

Magnetic Declination ◽

Declination Angle ◽

Magnetic North

Abstract. The determination of magnetic declination angle entails finding two directions: Geographic North and Magnetic North. This paper deals with the former. The known way to do it by using the Suns' calculable orientation in the sky is improved by using a device based on a WIDIF Diflux theodolite and split photocells positioned on its telescope ocular. Given the WIDIF accurate timing and localisation provided by the on board GPS receiver, an astronomical computation can be effectuated and the Sun azimuth as well as an auxiliary's target azimuth can easily and quickly be determinated. The precise Sun's crossing of the split photocell, amplified by the telescope's magnification allows azimuth' accuracies of a few seconds of arc.

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