Space Geodesy, Communications, and Navigation: History of the Development, State, and Prospects

Testoedov, N. A.; Karutin, S. N.

doi:10.1134/s101933162106006x

Cited by 3 publications

(4 citation statements)

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“…A global space-based geodetic network is currently being developed to support the Earthwide coordinate system, geodetic support GLONASS, and orbital spacecraft missions [1].…”

Section: Introductionmentioning

confidence: 99%

“…Breaking it down TSS for n isothermal knots. In the general case the thermal interaction of the nodes with each other and the surrounding space can be represented as a system of ordinary differential equations: (1) where Ti -average node temperature; kij -coefficients determining the convective heat transfer; mij -coefficients determining the radiant heat transfer between nodes; ci -effective heat capacities of the units; Ii q -external and internal heat load on the units.…”

Section: Introductionmentioning

confidence: 99%

“…Let us present a particular indicator of the survivability of a satellite in orbit PL as the product of the probability of no unacceptable damage from flow defeaters P0 n and the likelihood of the absence of the same damage from single projectiles P0 1 .…”

Section: Introductionmentioning

confidence: 99%

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Optimisation of the temperature control system of a geodetic space complex satellite

Gubeladze

Yagovkina

2023

E3S Web of Conf.

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A frequency generator is used to measure the signal delay between two surveying space objects. Thermostatting allows an increased level of stability. The temperature control system is the main thermal mode support system onboard. The mathematical model of this system is considered in this article. The analysis of factors influencing on Earth Satellite Vehicle is carried out. The variant of protection against kinetic influences is offered.

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“…A global space-based geodetic network is currently being developed to support the Earthwide coordinate system, geodetic support GLONASS, and orbital spacecraft missions [1].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimisation of the temperature control system of a geodetic space complex satellite

Gubeladze

Yagovkina

2023

E3S Web of Conf.

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“…При создании беззапросных измерительных станций наземного базирования (БИС-Н) и формировании облика комплекса технических средств (КТС), обеспечивающих их надежное функционирование [1][2][3][4][5], важное значение имеет обоснованный выбор общей схемы источника бесперебойного питания (ИБЭП) в составе КТС БИС-Н. Отметим, что проблемы надежностного проектирования КТС на сегодняшний момент недостаточно полно освещены в научной литературе [6][7][8][9].…”

Section: Introductionunclassified

On the issue of choosing the general scheme of an uninterruptible power supply when designing a complex of technical means of non-request measuring systems

Kovalev

2023

V International Scientific Conference «mip-v-2023: Modernization, Innovations, Progress»

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In the article, based on the concept of increasing the reliability of the formed image of the complex of technical means for ensuring the operation of an unsolicited measuring station of the network of stations of the ground control complex, a solution is proposed for choosing the general scheme of an uninterruptible power supply as part of a complex of technical means of unsolicited measuring systems. The uninterrupted power supply system is designed to automatically provide a set of technical means for ensuring the operation of a non-demand measuring station with a guaranteed and uninterrupted power supply in accordance with the indicators of reliability, autonomy and quality of electricity specified in the terms of reference. A procedure for selecting the constituent elements of an uninterruptible power supply is proposed, the main stages and composition of the protection means for the power supply network are considered. A block diagram of protection over the power supply network is presented. It is noted that structurally, the uninterruptible power supply should be able to be placed both in a stationary room and in a block container.

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A Review of Marine Gravity Field Recovery from Satellite Altimetry

Guo

et al. 2022

Remote Sensing

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Marine gravity field recovery relies heavily on satellite altimetry. Thanks to the evolution of altimetry missions and the improvements in altimeter data processing methods, the marine gravity field model has been prominently enhanced in accuracy and resolution. However, high-accuracy and high-resolution gravity field recovery from satellite altimeter data remains particularly challenging. We provide an overview of advances in satellite altimetry for marine gravity field recovery, focusing on the impact factors and available models of altimetric gravity field construction. Firstly, the evolution of altimetry missions and the contribution to gravity field recovery are reviewed, from the existing altimetry missions to the future altimetry missions. Secondly, because the methods of altimeter data processing are of great significance when obtaining high-quality sea surface height observations, these improved methods are summarized and analyzed, especially for coastal altimetry. In addition, the problems to be resolved in altimeter data processing are highlighted. Thirdly, the characteristics of gravity recovery methods are analyzed, including the inverse Stokes formula, the inverse Vening Meinesz formula, Laplace’s equation, and least squares collocation. Furthermore, the latest global marine gravity field models are introduced, including the use of altimeter data and processing methods. The performance of the available global gravity field model is also evaluated by shipboard gravity measurements. The root mean square of difference between the available global marine gravity model and shipboard gravity from the National Centers for Environmental Information is approximately 5.10 mGal in the low-middle latitude regions, which is better than the result in high-latitude regions. In coastal areas, the accuracy of models still needs to be further improved, particularly within 40 km from the coastline. Meanwhile, the SDUST2021GRA model derived from the Shandong University of Science and Technology team also exhibited an exciting performance. Finally, the future challenges for marine gravity field recovery from satellite altimetry are discussed.

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Space Geodesy, Communications, and Navigation: History of the Development, State, and Prospects

Cited by 3 publications

References 0 publications

Optimisation of the temperature control system of a geodetic space complex satellite

Optimisation of the temperature control system of a geodetic space complex satellite

On the issue of choosing the general scheme of an uninterruptible power supply when designing a complex of technical means of non-request measuring systems

A Review of Marine Gravity Field Recovery from Satellite Altimetry

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