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The influence the horizontal structure of the forest on the passing the L1 range of navigation satellites signals [PDF]
E3S Web of Conferences, 2021 Experimental data on the passing of signals from navigation satellites of the L1 range through forest plantations with an anisotropic horizontal tree arrangement structure are presented.
Sorokin Anatoly +4 more
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Irregular Layout for a Satellite’s Interferometric Array [PDF]
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 We address the optimization problem of antenna placement on satellite-mounted interferometric synthetic-aperture instruments. In classic designs, the antennas on satellites are aligned regularly on the satellite’s frame. Inspired by methods proposed for the placement of antennas in astronomical interferometers, such as ALMA or SKA, we explore irregular
Krzakala, Paul +10 more
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Debris rings from extrasolar irregular satellites
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT Irregular satellites are the minor bodies found orbiting all four Solar system giant planets, with large semimajor axes, eccentricities, and inclinations. Previous studies have determined that the Solar system’s irregular satellites are extremely collisionally evolved populations today, having lost ∼99 per cent of their initial ...
Kevin T Hayakawa, Bradley M S Hansen
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CAPTURE OF IRREGULAR SATELLITES AT JUPITER [PDF]
The Astrophysical Journal, 2014 The irregular satellites of outer planets are thought to have been captured from heliocentric orbits. The exact nature of the capture process, however, remains uncertain. We examine the possibility that irregular satellites were captured from the planetesimal disk during the early Solar System instability when encounters between the outer planets ...
Nesvorny, D. +2 more
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Irregular Layout for a Satellite’s Interferometric Array
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 We address the optimization problem of antenna placement on satellite-mounted interferometric synthetic-aperture instruments. In classic designs, the antennas on satellites are aligned regularly on the satellite’s frame.
Paul Krzakala +10 more
doaj +1 more source
Remote Sensing, 2021 Very High Throughput Satellites (VHTS) have a pivotal role in complementing terrestrial networks to increase traffic demand. VHTS systems currently assume a uniform distribution of traffic in the service area, but in a real system, traffic demands are ...
Flor G. Ortiz-Gomez +3 more
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A Scheduling Method of Using Multiple SAR Satellites to Observe a Large Area
Sensors, 2023 This paper presents a scheduling problem of using multiple synthetic aperture radar (SAR) satellites to observe a large irregular area (SMA). SMA is usually considered as a kind of nonlinear combinatorial optimized problem and its solution space strongly
Qicun Zheng +3 more
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Analysis of a Simulated Optical GSO Survey Observation for the Effective Maintenance of the Catalogued Satellites and the Orbit Determination Strategy [PDF]
Journal of Astronomy and Space Sciences, 2015 A strategy is needed for a regional survey of geosynchronous orbits (GSOs) to monitor known space objects and detect uncataloged space objects. On the basis of the Inter-Agency Debris Committee’s recommendation regarding the protected region of ...
Jin Choi +8 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 Passive microwave satellite observations provide critical information for global forecast models, particularly in cloudy and/or precipitating conditions.
Yuriy V. Goncharenko +4 more
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Satellite image reconstruction from an irregular sampling [PDF]
2008 IEEE International Conference on Acoustics, Speech and Signal Processing, 2008 We propose a new method to solve a problem of image restoration with many different aspects: reconstruction from irregular samples, deconvolution and denoising. The model we propose is robust to different kind of noises, in particular, impulse and Gaussian noise. We compare our results to the ones obtained in [1] and show that our problem presents some
Bughin, Eric +2 more
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