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Stefan cel Mare
University of Suceava
Faculty of Electrical Engineering and
Computer Science
13, Universitatii Street
Suceava - 720229

Print ISSN: 1582-7445
Online ISSN: 1844-7600
WorldCat: 643243560
doi: 10.4316/AECE


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Clarivate Analytics published the InCites Journal Citations Report for 2017. The JCR Impact Factor of Advances in Electrical and Computer Engineering is 0.699, and the JCR 5-Year Impact Factor is 0.674.

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With new technologies, such as mobile communications, internet of things, and wide applications of social media, organizations generate a huge volume of data, much faster than several years ago. Big data, characterized by high volume, diversity and velocity, increasingly drives decision making and is changing the landscape of business intelligence, from governments to private organizations, from communities to individuals. Big data analytics that discover insights from evidences has a high demand for computing efficiency, knowledge discovery, problem solving, and event prediction. We dedicate a special section of Issue 4/2017 to Big Data. Prospective authors are asked to make the submissions for this section no later than the 31st of May 2017, placing "BigData - " before the paper title in OpenConf.

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  2/2014 - 5

Cold Start Strategy of the CubeSat GPS Receiver

KOVAR, P. See more information about KOVAR, P. on SCOPUS See more information about KOVAR, P. on IEEExplore See more information about KOVAR, P. on Web of Science, JELEN, S. See more information about JELEN, S. on SCOPUS See more information about JELEN, S. on SCOPUS See more information about JELEN, S. on Web of Science
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Download PDF pdficon (716 KB) | Citation | Downloads: 335 | Views: 457

Author keywords
cold start, CubeSat, LEO orbit, space GPS receiver

References keywords
navigation(8), space(7), receiver(6), satellite(4), gnss(4)
Blue keywords are present in both the references section and the paper title.

About this article
Date of Publication: 2014-05-31
Volume 14, Issue 2, Year 2014, On page(s): 29 - 34
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2014.02005
Web of Science Accession Number: 000340868100005
SCOPUS ID: 84901825251

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The cold start of the LEO satellite GPS receiver is complicated due to a large Doppler frequency shift, Doppler frequency rate of the navigation signals and a rapid change of the satellite visibility. The cold start time can be shortened by a proper strategy of a selection of the satellites to be searched for. The cold start simulator was developed and used for optimization of the sequence of the satellites search, for development and testing of an advanced satellite selection algorithm that utilizes information on the satellites already detected and for optimization of a frequency search range. The best performance was achieved by using an advanced selection strategy. The strategy is based on the selection of the satellites nearest to the detected satellite, using the average angle between the Earth center (apex) and the satellites. Furthermore, the simulation shows that it is not practical to investigate all frequencies within the range of the maximum possible Doppler frequency shift of the carrier wave of the navigation signal, but investigate approximately +/- 35 kHz range and, if not successful, switch to the next satellite. The simulations proved that a simple GPS receiver with the sequential search algorithms can operate in the LEO orbit.

References | Cited By  «-- Click to see who has cited this paper

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[2] M. Grondin, et al., "A new operational low cost GNSS software receiver for microsatellites", in: Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing (NAVITEC) 2010, vol., no., pp.1-5, 8-10

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[5] T. Paulmier, B. Dirassen, D. Payan, M. Eesbeek, "Material Charging in Space Environment: Experimental Test Simulation and Induced Conductive Mechanisms", IEEE Transactions on Dielectrics and Electrical Insulation, vol.16, no.3, pp.682,688, June 2009
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[7] I. Ali, N. Al-Dhahir, J. E. Hershey, "Doppler characterization for LEO satellites", IEEE Transactions on Comm., vol.46, no.3, pp.309-313, Mar 1998
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[9] K. Gold, A. Brown, "Architecture and performance testing of a software GPS receiver for space-based applications," in: Aerospace Conference, 2004, vol.4, no., pp.2404,2416 Vol.4, 6-13 March 2004

[10] J. Leclere, C. Botteron, P. Farine, "Resource and performance comparisons for different acquisition methods that can be applied to a VHDL-based GPS receiver in standalone and assisted cases", in: Position Location and Navigation Symposium (PLANS) 2010, vol., no., pp.745,751, 4-6
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References Weight

Web of Science® Citations for all references: 151 TCR
SCOPUS® Citations for all references: 232 TCR

Web of Science® Average Citations per reference: 8 ACR
SCOPUS® Average Citations per reference: 12 ACR

TCR = Total Citations for References / ACR = Average Citations per Reference

We introduced in 2010 - for the first time in scientific publishing, the term "References Weight", as a quantitative indication of the quality ... Read more

Citations for references updated on 2019-02-21 10:03 in 64 seconds.

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