适用于极端空间条件的高速光学无线系统

IF 2.3 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Giulio Cossu;Lorenzo Gilli;Nicola Vincenti;Ezgi Ertunc;Maurizio Massa;Roberto Dell’Orso;Andrea Moggi;Fabrizio Palla;Ernesto Ciaramella
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引用次数: 0

摘要

在本文中,我们介绍并深入分析了一种高速无线通信(OWC)系统,该系统专为太空应用而设计,可通过定向光链路以 1Gbit/s 的速度在 3U 立方体卫星内进行点对点链接。OWC 发射器配备了垂直腔面发射激光器(VCSEL),发射波长为 850nm,而接收器则使用 PIN 光电二极管(PD)来检测调制信号。我们在极端条件下对该系统进行了测试,包括与 SpaceX 猎鹰-9 火箭发射过程中类似的机械应力、真实的机械振动频谱(高达 10G)、温度变化(-40 至 80°C)和 X 射线辐照范围(高达 1Mrad)。所有这些数值都符合低地球轨道(LEO)任务的预期值(甚至更高)。这些结果表明,OWC 系统适合在空间应用中使用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High-Speed Optical Wireless System for Extreme Space Conditions
In this paper, we present and deeply characterize a high-speed Optical Wireless Communication (OWC) system designed for use in space applications that operates at 1Gbit/s over a directed optical link for a point-to-point link inside a 3U CubeSat. The OWC transmitter is equipped with a Vertical Cavity Surface Emitting Laser (VCSEL) that emits at 850nm, whilst the receiver uses a PIN Photo-Diode (PD) to detect the modulated signal. We tested the system under extreme conditions including mechanical stresses similar to those experienced during a launch on SpaceX Falcon-9 vehicle, with a realistic spectrum of mechanical vibrations (up to 10G), the temperature variation (between −40 and 80°C), and X-ray irradiation ranges (up to 1Mrad). All of these values were within the expected values (or even much higher) for a Low Earth Orbit (LEO) mission. The results demonstrate that the OWC system can be suitable for use in space applications.
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CiteScore
5.70
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