On-board propulsion for communications satellites

Callahan, Lisa Wood; Curran, Francis M.; Wickenheiser, Timothy J.

doi:10.2514/6.1996-1142

Cited by 1 publication

(4 citation statements)

References 2 publications

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“…• The space segment consists of those elements that provide the control and monitoring functions of the system, both the ones installed in the satellite as well as those within the Earth station. These elements make possible to provide logistical support to the system in general [47,48,49]. • The satellite is the core of the communications system, and is what executes the communication and mission functions assigned to the system.…”

Section: A Review On Satellite Communicationsmentioning

confidence: 99%

“…It is composed of active elements assembled and interacting with each other. These elements make up the socalled internal subsystems of the satellite, which are generally: structure, power supply, attitude control, orbit control, thermal control and telemetry, telecommand and ranging [47,48,49,50]. • As a specific function of the space segment, there is the operation of the control and monitoring systems of the satellite link.…”

Section: A Review On Satellite Communicationsmentioning

confidence: 99%

“…Technically, these systems are included in the subsystem called tracking, telemetry and command [51,52]. The elements that make up this system are intended to track the position of the satellite in order to correct it if necessary, to obtain satellite status values, to provide response commands between the satellite and the Earth station and of course, to observe and maintain the correct telecommunications transmission [47,48,49,50]. • The Earth segment consists of the Earth stations used to transmit and receive the traffic coming from the satellite.…”

Section: A Review On Satellite Communicationsmentioning

confidence: 99%

“…• The Earth segment consists of the Earth stations used to transmit and receive the traffic coming from the satellite. It additionally serves as an interface between the satellite system itself and the terrestrial networks to which it provides service [47,48,49]. • Finally, the frequency of operation is one of the parameters that usually determines in a more forceful way, the type of application or service that the satellite system provides.…”

Section: A Review On Satellite Communicationsmentioning

confidence: 99%

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Radiofrequency and optical satellite link budgeting calculator

Rosas-Palacios,

Casillas-Aviña,

Yáñez-Casas

et al. 2024

J. Phys.: Conf. Ser.

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Satellite communications represent one of the most widely used communication systems nowadays. From the 50’s of 20th century up to the present, the demand for satellite services has increased rapidly, so the need to design and implement reliable, up-to-date systems that meet the needs of users is increasingly imperative. Technological progress also implies a better use of the radio spectrum and the incorporation of benefits in terms of transmission performance. Traditionally, satellite systems have been implemented in the range corresponding to radio frequency, and more recently, special attention has been paid to the exploration of the spectrum corresponding to optical communications, due to the superior benefits that it offers, despite the set of challenges that its implementation represents. Such advances demand the greatest certainty of operation even from the conception and design stage of the transmission system, since satellite communications are not prone to constant changes and maintenance. The calculation process known as link budget is a tool present in the design of any wireless communications system, and its results determine the efficiency and reliability of the design. However, due to the large number of manufacturers and operators, as well as considering the novelty of using high-performance optical systems, it is difficult to stick to a single method or even to point out one as totally reliable and simple to use. With the purpose of expediting the calculation of link budgets, there are various computational tools that allow this process to be carried out. However, these tools carry the problem of poor compatibility, differences and a low degree of reliability and ease of use. In the present work, the construction and use of a web application is proposed that includes the link budget calculation process for both radio and optical satellite systems, flexible, simple, user-friendly, compatible, and mainly, abode to standardised and documented models for provide reliability and accuracy.

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Section: A Review On Satellite Communicationsmentioning

confidence: 99%

Section: A Review On Satellite Communicationsmentioning

confidence: 99%