Searched for: author%3A%22Speretta%2C+S.%22
(1 - 20 of 22)

Pages

List view
Grid view
document
Turan, E. (author), Speretta, S. (author), Gill, E.K.A. (author)
In recent years, there has been a growing interest in lunar missions, particularly with the growing role of small satellites facilitated by piggyback launch opportunities. Typically, ground-based radiometric tracking is the workhorse to establish the necessary navigation solution in these missions, however, this could be expensive, while small...
conference paper 2023
document
Gill, E.K.A. (author), Morton, Jade (author), Axelrad, Penina (author), Akos, Dennis M. (author), Centrella, M. (author), Speretta, S. (author)
Spaceborne Global Navigation Satellite Systems (GNSS) receivers have become ubiquitous sensors for spacecraft navigation, especially in Low Earth Orbits (LEOs), often also supporting science endeavors or as acting dedicated science payloads. Due to the large number of space-capable GNSS receiver models available, spacecraft designers, as well as...
journal article 2023
document
Turan, E. (author), Speretta, S. (author), Gill, E.K.A. (author)
In recent years, there is a growing interest in small satellites for deep space exploration. The current approach for planetary navigation is based on ground-based radiometric tracking. A new era of low-cost small satellites for space exploration will require autonomous deep space navigation. This will decrease the reliance on ground-based...
review 2022
document
Turan, E. (author), Speretta, S. (author), Gill, E.K.A. (author)
This study presents an autonomous orbit determination system based on crosslink radiometric measurements applied to a future lunar CubeSat mission to clearly highlight its advantages with respect to existing ground-based navigation strategies. This work is based on the Linked Autonomous Interplanetary Satellite Orbit Navigation (LiAISON) method...
journal article 2022
document
Turan, E. (author), Speretta, S. (author), Gill, E.K.A. (author)
This study investigates the application of the Linked Autonomous Interplanetary Satellite Orbit Navigation (LiAI-SON) technique for multiple small spacecraft in cislunar orbits considering high inter-satellite range measurement errors. The LiAISON method provides an autonomous orbit determination solution using crosslink measurements such as...
conference paper 2022
document
Turan, E. (author), Speretta, S. (author), Gill, E.K.A. (author)
This study provides a performance analysis of radiometric autonomous navigation for the lunar satellite network topologies formed by three spacecraft at various orbits. This work is built on the Linked Autonomous Interplanetary Satellite Orbit Navigation (LiAISON) method and uses mesh (distributed) and centralized (star) network topologies. The...
other 2022
document
Turan, E. (author), Speretta, S. (author), Gill, E.K.A. (author)
In this study, the application of the Linked Autonomous Interplanetary Satellite Orbit Navigation (LiAISON) method for cislunar satellite formations is investigated considering range only and range-rate only measurements. The LiAISON method provides an autonomous orbit determination solution solely using satellite-to-satellite measurements such...
other 2022
document
Turan, E. (author), Speretta, S. (author), Gill, E.K.A. (author)
Recent advances in space technology provide an opportunity for small satellites to be launched in cislunar space. However, tracking these small satellites still depends on ground-based operations. Autonomous navigation could be a possible solution considering the challenges presented by costly ground operations and limited onboard power...
journal article 2022
document
Saathof, R. (author), Speretta, S. (author), Guo, J. (author), Kuiper, J.M. (author), Gill, E.K.A. (author)
Laser satellite communications provides an attractive application for optical communications. It provides more bandwidth with improved security at potentially a lower cost due to reduced size weight and power (SWAP) and reduced license cost compared to radio frequencies (RF) communications. These advantages have been recognized for years and...
abstract 2021
document
Broekhuizen, C.H. (author), Speretta, S. (author), Uludag, M.S. (author), van den Bos, M.F. (author), Haenen, J. (author), Menicucci, A. (author), Gill, E.K.A. (author)
In this paper, a detailed design is presented of a communications module that is designed to fit tight PocketQube design budgets but still offer performance at least comparable to commercial off-the-shelf CubeSat solutions. The communications module features extremely efficient power usage, less than 2 Watt DC for 1 Watt RF output while fitting...
conference paper 2020
document
Uludag, M.S. (author), Speretta, S. (author), Menicucci, A. (author), van den Bos, M.F. (author), Broekhuizen, C.H. (author), Bielders, M.J.M. (author), Haenen, J. (author), Gill, E.K.A. (author)
This paper presents the design, integration and testing of a pico satellite, Delfi-PQ, a 3P PocketQube developed by Delft University of Technology, expected to be launched at the end of 2020. The main goal of this project is creating a miniaturized platform for future space missions with performances comparable to CubeSats, taking advantage of...
poster 2020
document
Bouwmeester, J. (author), Radu, S. (author), Uludag, M.S. (author), Chronas, N. (author), Speretta, S. (author), Menicucci, A. (author), Gill, E.K.A. (author)
PocketQubes are a form factor of highly miniaturized satellites with a body of one or more cubic units of 5 cm. In this paper, the characteristics of PocketQubes in terms of their constraints and their (potential) utility are treated. To avoid space debris and limit collision risk, the orbits of PocketQubes need to be constraint. An analysis...
journal article 2020
document
Speretta, S. (author), Uludag, M.S. (author), Karunanithi, Visweswaran (author), Radu, S. (author), Chronas Foteinakis, N. (author), Bouwmeester, J. (author), Menicucci, A. (author), Gill, E.K.A. (author)
This paper presents the design of a multi-frequency deployable antenna system for femto-satellites as part of the Delfi-PQ project, a PocketQube with a size of 50x50x178 mm which is being developed by the Delft University of Technology. This new form factor brings its own challenges on every subsystem and it is seen as a stepping stone towards...
conference paper 2019
document
Uludag, M.S. (author), Pallichadath, V. (author), Speretta, S. (author), Radu, S. (author), Chronas Foteinakis, N. (author), Melaika, Antanas (author), Cervone, A. (author), Gill, E.K.A. (author)
This papers gives an insight on different sub topics related to a micro-propulsion subsystem for a PocketQube. First, PocketQubes will be introduced and then Delfi-PQ will be presented, providing an overview of the mission for which this micro-propulsion system will be used. Step by step, the paper will explain the subsystem, its challenges,...
conference paper 2019
document
Uludag, M.S. (author), Yakut, Erdinc (author), Speretta, S. (author), Radu, S. (author), Chronas Foteinakis, N. (author), Bouwmeester, J. (author), Menicucci, A. (author), Gill, E.K.A. (author)
PocketQubes represent a new type of cube-shaped platforms with dimensions of 50x50 mm and mass of 250 g. Just like the CubeSats, these platforms are also split in units which are referred to as 1P. The Delft University of Technology has been working on Delfi-PQ, a 3P PocketQube with the dimensions of 50x50x178 mm. This miniaturized size brings...
conference paper 2019
document
Bouwmeester, J. (author), Radu, S. (author), Uludag, M.S. (author), Chronas Foteinakis, N. (author), Speretta, S. (author), Menicucci, A. (author), Gill, E.K.A. (author)
PocketQubes are a new form factor of highly miniaturized satellites with a body of one or more cubic units of 5 cm. The characteristics of PocketQubes in terms or legal and regulatory aspects, the technological readiness levels and financial considerations are assessed. In particular, an analysis of orbital decay characteristics has been carried...
conference paper 2018
document
Bouwmeester, J. (author), Gill, E.K.A. (author), Speretta, S. (author), Uludag, M.S. (author)
The dominant architectural approach in CubeSats and PocketQubes is the use of modular physical units, each hosting (part of the) components of classical (virtual) subsystems. Many of these small satellites, however, also host subsystems or experiments with slightly alternative approach, e.g. with cellularization of components or the integration...
journal article 2018
document
Radu, S. (author), Uludag, M.S. (author), Speretta, S. (author), Bouwmeester, J. (author), Gill, E.K.A. (author), Chronas Foteinakis, N. (author)
Delft University of Technology has embarked on PocketQubes to showcase as the next class of miniaturized satellites. In the past decade, CubeSats have grown towards a successful business with mature capabilities. PocketQubes, however, are still in their infancy. The small size of the PocketQubes will trigger innovations in miniaturization and...
conference paper 2018
document
Speretta, S. (author), Sundaramoorthy, P.P. (author), Gill, E.K.A. (author)
This paper aims at analysing the current capabilities of the NORAD Space Surveillance network, in particular focusing on very small objects in LEO. Spacecraft miniaturization has been pushing the limits and capabilities of small satellites so much that spacecraft as small as 5x5x5 cm have already been launched and even smaller ones are currently...
conference paper 2017
document
Bouwmeester, J. (author), Gill, E.K.A. (author), Speretta, S. (author), Uludag, M.S. (author)
The dominant architectural approach in CubeSats and PocketQubes is the use of modular physical units, each hosting (part of the) components of classical (virtual) subsystems. Many of these small satellites, however, also host<br/>subsystems or experiments with slightly alternative approach, e.g. with cellularization of components or the...
conference paper 2017
Searched for: author%3A%22Speretta%2C+S.%22
(1 - 20 of 22)

Pages

List view
Grid view