IR-UWB Study for Intra-Satellite Wireless Communication

Awano, Johta; Tomiki, Atsushi; Nishikawa, Hisashi

doi:10.1109/wisee.2019.8920299

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…In the future, wireless technologies could help to reduce this harness 2, 5-7 by substituting the physical cables. Among them, Radio Frequency (RF) systems could represent an alternative to wired links, [7][8][9][10][11] however, they have severe security issues 6 and a low Electro-Magnetic Compatibility (EMC) with the other electronic systems.…”

Section: Introductionmentioning

confidence: 99%

Revolutionizing spacecraft communication: optical wireless technology for reduced weight and cost

Gilli,

Macrì,

Cossu

et al. 2024

Free-Space Laser Communications XXXVI

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The current on-board communication network in spacecrafts requires a significant amount of wires, leading to relevant issues in cost and occupied volume . Optical Wireless Communication (OWC) can eliminate the need for physical cables, reducing installation and maintenance costs and improving system flexibility. We propose and demonstrate an OWC system that provides wireless data transfer among the electronic units within the satellite. The system is now successfully operated with two popular wired communication protocols on satellites, i.e., CAN-bus and MIL-STD-1553B. It has complete backward compatibility with existing protocols. Moreover, as it requires no DSP, it results in an extremely small footprint and low power consumption. It can effectively reduce the overall weight and cost of the spacecraft data network, offering the potential for a groundbreaking change in spacecraft technology.

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Section: Introductionmentioning

confidence: 99%

Revolutionizing spacecraft communication: optical wireless technology for reduced weight and cost

Gilli,

Macrì,

Cossu

et al. 2024

Free-Space Laser Communications XXXVI

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show abstract

“…Radio frequency (RF) wireless communications (e.g., WiFi) might be an alternative to wired systems [15]- [19]. However, RF has severe security flaws because the signals can be easily received/jammed from outside the industrial area.…”

Section: Introductionmentioning

confidence: 99%

Optical Wireless Communication in an Avionics Test Facility for Spacecrafts

Gilli,

Cossu,

Vincenti

et al. 2024

IEEE Sensors J.

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We explore the evident benefits of introducing a new wireless technology in assembly integration and test (AIT), which is a key and demanding phase when commissioning a satellite. Namely, for the first time, we successfully tested an optical wireless communication (OWC) system in a real AIT room, demonstrating that it can effectively provide wireless transmission among the different units of a spacecraft and the test equipment. This environment is extremely challenging because it does not allow line-of-sight among the different units: as a result, OWC relies heavily on the diffuse illumination of the ceiling and the following light scattering.In addition to that, those test rooms present a strong ambient light that can reduce the transmission performance. The proposed system employs new OWC transceivers that we designed, realized, and optimized for this scenario. They adapt the native MIL-STD-1553B standard to the OWC transmission and vice versa, without any modification of the protocol. They effectively realize an OWC transparent connection, replacing the cabled connections with significant improvements in working time and costs. Mostly, they imply no modification of the existing protocol. The system is thoroughly tested by optical and communication measurements; to this aim, we emulated the usual communication measurements, placing the realized transceivers over a workbench for avionic tests. All tests showed no errorand large system margins. These results prove that the OWC technology has a great potential for practical AIT applications, in the near future: this can also open the way to the wide deployment of the technology in real spacecrafts.

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