Session
Session VI: Communications
Location
Utah State University, Logan, UT
Abstract
We are developing a low SWaP (size, weight and power) inter-spacecraft omnidirectional optical communicator (ISOC) to enable spacecraft swarms. The ISOC employs arrays of lasers telescopes and detectors fitted inside a truncated dodecahedron geometry to provide full sky coverage. Each telescope operates at 850nm and includes a 1W laser diode, collimator, MEMS mirror and steering lens. The photodetectors are strategically arranged around the ISOC body and are used for continuous angle-of-arrival (AOA) calculation of the incoming signals using proprietary AOA algorithms. The ISOC provides full sky coverage (4π steradians) and will be able to maintain multiple gigabit links simultaneously. In this paper we will present the latest experimental results obtained with the ISOC including high data rate communication tests between 2 ISOCs. We will also present results of our swarm simulator that includes 4 ISOCs mounted on computer-controlled moving platforms. Lastly, we will present design details of a technology demonstration mission concept for validating the ISOC as well as examples of future swarm missions that could be enabled by this technology.
Inter-spacecraft Omnidirectional Optical Communicator for Swarms
Utah State University, Logan, UT
We are developing a low SWaP (size, weight and power) inter-spacecraft omnidirectional optical communicator (ISOC) to enable spacecraft swarms. The ISOC employs arrays of lasers telescopes and detectors fitted inside a truncated dodecahedron geometry to provide full sky coverage. Each telescope operates at 850nm and includes a 1W laser diode, collimator, MEMS mirror and steering lens. The photodetectors are strategically arranged around the ISOC body and are used for continuous angle-of-arrival (AOA) calculation of the incoming signals using proprietary AOA algorithms. The ISOC provides full sky coverage (4π steradians) and will be able to maintain multiple gigabit links simultaneously. In this paper we will present the latest experimental results obtained with the ISOC including high data rate communication tests between 2 ISOCs. We will also present results of our swarm simulator that includes 4 ISOCs mounted on computer-controlled moving platforms. Lastly, we will present design details of a technology demonstration mission concept for validating the ISOC as well as examples of future swarm missions that could be enabled by this technology.
