Intersatellite-Link Demonstration Mission between CubeSOTA (LEO CubeSat) and ETS9-HICALI (GEO Satellite)

Carrasco‐Casado, Alberto; Xuan, Phong; Kolev, Dimitar; Hosonuma, Takayuki; Shiratama, Koichi; Kunimori, Hiroo; Trinh, Phuc V.; Abe, Yuma; Nakasuka, Shinichi; Toyoshima, Morio

doi:10.1109/icsos45490.2019.8978975

Cited by 23 publications

(13 citation statements)

References 6 publications

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“…In the latter use case, the GEO satellite gives service to satellite users, which generally require transmitting large amounts of data to the ground. When high link availability is a critical requirement, using a relay satellite is a useful alternative to waiting to pass over an operational ground station [6]. HAPS or commercial airplanes are another possible user for the GEO relay.…”

Section: Use Cases For Nict's Lasercom Terminalsmentioning

confidence: 99%

NICT's versatile miniaturized lasercom terminals for moving platforms

Carrasco‐Casado

Shiratama

Trinh

et al. 2022

2022 IEEE International Conference on Space Optical Systems and Applications (ICSOS)

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With the goal of meeting the diverse requirements of many different types of platforms, ranging from small drones to big satellites, and being applied in a variety of diverse scenarios, ranging from fixed terrestrial links to moving platforms in general, and operating within a wide range of conditions and distances, the Japanese National Institute of Information and Communications Technology (NICT) is currently working towards the development of a series of versatile miniaturized free-space laser-communication terminals. By choosing the appropriate terminal configuration for any given scenario, the basic conditions of operations can be satisfied without the need of customization, and the adaptive design of the terminals can close the gap to achieve an optimum solution that meets the communication requirements. This paper presents NICT`s current efforts regarding the development of this series of lasercom terminals and introduces the first prototypes developed for validation and test purposes.

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Section: Use Cases For Nict's Lasercom Terminalsmentioning

confidence: 99%

NICT's versatile miniaturized lasercom terminals for moving platforms

Carrasco‐Casado

Shiratama

Trinh

et al. 2022

2022 IEEE International Conference on Space Optical Systems and Applications (ICSOS)

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“…O National Institute of Information and Communications Technology e a Universidade de Tóquio criaram uma missão entre o CubeSOTA, um CubeSat 3U em órbita LEO e o satélite ETS9-HICALI de órbita GEO, por meio da ISOC com taxa de transmissão de dados igual a 10 Gbps. O lançamento está previsto para 2023 27 .…”

Section: Desenvolvimento Da Comunicação óPtica Intersatélite Em Peque...unclassified

Aplicação da comunicação óptica intersatélite em missões de formação em voo de pequenos satélites

Santos¹,

Santos²,

Almeida³

2022

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Este artigo teve como objetivo apresentar a aplicação da tecnologia fotônica em missões espaciais de formação em voo entre pequenos satélites, do tipo CubeSat, pela comunicação óptica intersatélite (intersatellite optical communication) e aplicação da nanofotônica por meio do optical phased array, que é uma alternativa para sanar as deficiências encontradas nos dispositivos transmissores atualmente utilizados para esse tipo de missão.

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“…As for the counterpart of the small LEO satellite, the National Institute of Communications and Information Technology, Japan, has been developing the GEO ETS-XI satellite equipped with High Speed Communication with Advanced Laser Instrument (HICALI). 8,9 With a 15-cm aperture and high receiver sensitivity, HICALI is suitable to be a relay node of the small satellite because it can compensate for the lack of the small satellite's resources. Based on the existing technologies, a link budget of the LEO-to-GEO laser communication is calculated for both the initial and communication phases.…”

Section: Link Budget Analysismentioning

confidence: 99%

Modeling of piezoelectric actuator's hysteresis and its effect on the control accuracy of a LEO-to-GEO laser-communication for a small satellite

Xuan

Suzumoto

Carrasco‐Casado

et al. 2021

International Conference on Space Optics — ICSO 2020

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Compared to conventional large satellites in the past, small satellite classes (less than 150 kg) show their advantages for mass production, such as short time and low cost for development and launch, to cope with the demand for emerging missions that require a sufficient number of satellites in orbit. However, the traditional communication method, in which a low earth orbit (LEO) small satellite sends data to a ground station using radio frequency, has several disadvantages. Firstly, the limitation of radio-frequency bandwidth leads to a low data rate and difficulty in getting a frequency license. Secondly, there is a significant delay during which data cannot be sent to the ground due to lacking a line of sight between the LEO satellite and the ground station. Additionally, the duration time for the small satellite to communicate with the ground station is just less than 10 minutes approximately. To resolve the above issues, we investigate the case that a less-than-150-kg satellite carries out a laser communication link from LEO to a satellite in geostationary orbit (GEO). Due to the constraints of size, weight, and power (SWaP), traditional bulky LEO-GEO relay systems cannot be applied for the small satellite. However, using the combination of the satellite body pointing and a piezo Fast-Steering Mirror (FSM), which reduces the SWaP considerably, makes it feasible that the LEO-to-GEO communication can be implemented in a small satellite for the first time. While utilizing laser communication can increase the data rate, the relay communication via the GEO satellite helps the small satellite to extend the communication duration significantly. Moreover, since there is a line of sight between the two terminals in any of about 15 orbits per day of the LEO satellite, data taken by the small satellite can be downloaded to the ground via the GEO one in almost real time. This research aims at investigating and proving the feasibility of a small satellite to transmit a laser communication link to its GEO counterpart. In this paper, we describe the LEO-to-GEO laser communication of the small satellite with a study of pointing-budget and link-budget analysis. Furthermore, a hardware-based simulation of the fine control mechanism is conducted. The hysteresis that affects severely to the piezo mechanism, and hence, the final control accuracy, is modeled accurately and its effect is shown.

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Intersatellite-Link Demonstration Mission between CubeSOTA (LEO CubeSat) and ETS9-HICALI (GEO Satellite)

Cited by 23 publications

References 6 publications

NICT's versatile miniaturized lasercom terminals for moving platforms

NICT's versatile miniaturized lasercom terminals for moving platforms

Aplicação da comunicação óptica intersatélite em missões de formação em voo de pequenos satélites

Modeling of piezoelectric actuator's hysteresis and its effect on the control accuracy of a LEO-to-GEO laser-communication for a small satellite

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