Low Earth Orbit Satellite Design

Sebestyen, George; Fujikawa, Steve; Galassi, Nicholas; Chuchra, Alex

doi:10.1007/978-3-319-68315-7

Cited by 26 publications

(29 citation statements)

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“…Where, for the aluminum shaft of radius and length r = 12,5 mm and l=100 mm, the area of surface of Sun incidence normal to Sun, A shaft_inc , is: Considering that the emissivity and absorptivity of the shaft surfaces, is for aluminium ε = 0,11 and α = 0,14 [2] respectively, we obtain a steady state temperature of T = 348 K.…”

Section: Resultsmentioning

confidence: 99%

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Heat Transfer Model of a Small Size Satellite on Geostationary Orbit

Preumont¹,

Szewczyk²,

Czubaczyński³

2019

JAMRIS

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The purpose of the study is to compute an approached satellite thermal model to be able to estimate the heat transfer and the maximum temperature through the harmonic gear for small size geostationary satellite. We use finite element method using known data with Nastran In-CAD FEM software. The presented results show temperature gradients compatible with experimental information. Though the results are not correlated with dedicated tests, they seems to be in line with what can be found in literature. The paper use these information in dedicated analysis related to impact of temperature gradient in precision mechanism. The second purpose of the study is to show that simplified tools and methods allows to reach results sufficient for preliminary analysis. The space business is changing fast with growing private companies that are challenging conservative space standards. A simplified analysis allowing to reduce cost and increase competitiveness is presented.

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Section: Resultsmentioning

confidence: 99%

“…For example, the positioning accuracy. Literature [1][2][3][4][5][6][7][8][9][10][11] present relevant information to perform accurately thermal analysis of satellite. Thermal behavior of small satellite were studied in [12] and simplified model of temperature evolution in [13,14].…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer Model of a Small Size Satellite on Geostationary Orbit

Preumont¹,

Szewczyk²,

Czubaczyński³

2019

JAMRIS

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“…This is the angle of the horizon from about 600 km. Moreover, the antenna gain is compact at nadir, better matching the slant range path loss [11]. The link margin versus elevation angle is shown in Figure 5.…”

Section: The Design Backgroundmentioning

confidence: 99%

“…The turnstile antenna is well-suited to provide circularly polarized Earth coverage for satellites below about 800 km. That antenna is small (at S-band, about 2" × 2") and firm [11]. It easily resists launch vehicle loads (Figure 6).…”

Section: The Design Backgroundmentioning

confidence: 99%

Communication System for Nanosatellite Earth Observation

Zosimovych¹

2021

AAST

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This paper proposes a communication system for nanosatellite Earth observation preliminary design technique as useful tools for managing and improving various aspects of regional and national resources. Under analysis was proposed a design process for the low Earth orbit nanosatellite communication system. In proposed paper have been formulated and solved next goals: reviewed Earth observation systems and studied their design parameters, analyzed the on-board antennas design background and provided analytical estimations, such as design a passband quadrature phase shift keying transmitter and receiver in Simulink, was obtained a bit error rate curves by using a Simulink/MathWorks, generated an offset quadrature phase shift keying waveform and investigated their characteristics, observed and analyzed the diagrams, constellation, and the signal trajectories of quadrature phase shift keying according contemporary design concept. As a result, this allows to propose innovative communication system design techniques applied for the nanosatellite category.

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“…The miniaturisation of satellites is the key factor of space-based WSNs in order to reduce the cost of deployment and on-board communication systems (Sebestyen et al, 2014). The implementation of space-based WSNs facing many challenges because the specific characteristics of space environments which are very harsh with temperature extremes from cryogenic to very high temperatures and pressure from vacuum to very high pressures.…”

Section: Challenges Of Sensor Network In Space Applicationsmentioning

confidence: 99%

Wireless sensor networks for extreme environments: remote sensing and space industry

Telbany¹,

Maged²

2019

IJHI

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The adoption of wireless sensor networks (WSNs) for environmental monitoring is currently considered one of the most challenging applications for this emerging technology. These set of sensors that collaboratively perform embedded sensing and communication tasks owned features such as low cost, flexibility, fault tolerance, high sensing fidelity, creating many new and exciting applications for remote sensing and space industry where many essential phenomena have hardly been investigated. In this paper, a state-of-art survey clearly shows the WSNs have been successfully implemented and tested in remote sensing applications. Morevever, the developments and challenges in design WSNs for space-based application are discussed in order boost the use of WSNs in remote sensing and space industry in Egypt.

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Low Earth Orbit Satellite Design

Cited by 26 publications

References 0 publications

Heat Transfer Model of a Small Size Satellite on Geostationary Orbit

Heat Transfer Model of a Small Size Satellite on Geostationary Orbit

Communication System for Nanosatellite Earth Observation

Wireless sensor networks for extreme environments: remote sensing and space industry

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