радыё frequency based deep прастору communication faces constraints due to low bandwidth and increasing need of high data transmission rates. Laser or optical based system has potential to break the communication constraints. НАСА has tested laser communications against extreme distances and demonstrated high-bandwidth communications in deep прастору when it beamed to Earth an ultra-high-definition video via laser from a distance of 32 million km, from Psyche spacecraft which is currently travelling through deep прастору to metal-rich asteroid Psyche located in the asteroid belt between Сакавік and Jupiter. This was first demonstration of optical communications beyond the Moon. Deep Прастора Network (DSN) antenna received both радыё frequency and near-infrared laser signals.
глыбокая прастору communication is mostly conducted using radio frequencies. However, radio frequency-based system cannot meet current and future communication needs of прастору sector in view of limited bandwidth and ever-increasing demand of high data transmission rates.
On the other hand, laser or optical based communication offer many advantages in terms of large bandwidths, high data rate links and low SWaP (size, weight and power) terminals. It has the potential to enhance data rates 10 to 100 times the capacity of most sophisticated radio systems currently in use thus can break the communication constraints. Hence, the imperative to advance optical communications for high-capacity deep прастору communications capable of meeting future interplanetary data transmission needs.
глыбокая Прастора Optical Communications (DSOC) experiment is a technology demonstration payload onboard Psyche spacecraft which is currently travelling through deep прастору to metal-rich астэроід Псіхіка знаходзіцца ў поясе астэроідаў паміж Сакавік and Jupiter. In December 2023, it demonstrated high-bandwidth communications in deep прастору when it beamed to Earth an ultra-high-definition video via laser from 32 million km in deep space. This was first demonstration of optical communications beyond the Moon.
Глыбокая Прастора Network (DSN) is network of facilities located in different parts of the world to communicate with faraway spacecrafts exploring solar system. An experimental antenna of this network received both radio and laser signals beamed from Psyche spacecraft in deep space. This suggests that DSN antennas which currently communicate with spacecrafts via radio signals could be retrofitted for laser communications.
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Спасылкі:
- Karmous S., et al 2022. Як аптычная сувязь можа сфармаваць будучыню камунікацыі ў глыбокім космасе? Апытанне. Прэпрынт arXiv. DOI: https://doi.org/10.48550/arXiv.2212.04933
- Робінсан BS, 2023. Аптычная сувязь для даследавання космасу і навукі. Канферэнцыя па аптавалаконнай сувязі 2023.
- Тэхнічная дэманстрацыя NASA транслюе першае відэа з глыбокага космасу праз лазер. Апублікавана 18 снежня 2023 г. Даступна па адрасе https://www.nasa.gov/directorates/stmd/tech-demo-missions-program/deep-space-optical-communications-dsoc/nasas-tech-demo-streams-first-video-from-deep-space-via-laser/
- НАСА. Навіны – новая эксперыментальная антэна НАСА адсочвае лазер глыбокага космасу. Апублікавана 08 лютага 2024 г. Даступна па адрасе https://www.nasa.gov/technology/space-comms/deep-space-network/nasas-new-experimental-antenna-tracks-deep-space-laser/
- Аптычная сувязь глыбокага космасу (DSOC) https://www.nasa.gov/mission/deep-space-optical-communications-dsoc/
- Місія Псіхея. https://science.nasa.gov/mission/psyche/
- Сетка глыбокага космасу NASA (DSN) https://www.jpl.nasa.gov/missions/dsn
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