公开(公告)号：US20190280772A1

公开(公告)日：2019-09-12

申请号：US16225073

申请日：2018-12-19

Applicant: Massachusetts Institute of Technology

Inventor： Don M. Boroson ,  Bryan Shawn Robinson ,  Bryan M. Reid

IPC: H04B10/118 ,  H04B7/185 ,  H04B10/61 ,  H04B10/112 ,  H04B10/29 ,  H04J14/02 ,  H04B10/40

Abstract: Traditional satellite-to-earth data transmission systems are constrained by inefficient relay schemes and/or short-duration data transfers at low data rates. Communication systems described herein achieve extremely high burst rate (e.g., 10 Gbps or greater) direct-to-Earth (DTE) data transmission over a free-space optical link between a spacecraft and a remote terminal, which may be a ground terminal or another space terminal. The optical link is established, for example, when the remote terminal is at an elevation of 20° with respect to a horizon of the remote terminal. In some embodiments, a data transmission burst contains at least 1 Terabyte of information and has a duration of 6 minutes or less. The communication system can include forward error correction by detecting a degradation of a received free-space optical signal and re-transmitting at least a portion of the free-space optical signal.

公开(公告)号：US10205521B2

公开(公告)日：2019-02-12

申请号：US14991394

申请日：2016-01-08

Applicant: Massachusetts Institute of Technology

Inventor： Don M. Boroson ,  Bryan Shawn Robinson ,  Bryan M. Reid

IPC: H04B10/29 ,  H04B10/40 ,  H04B10/61 ,  H04B7/185 ,  H04J14/02 ,  H04B10/112 ,  H04B10/118

Abstract: Traditional satellite-to-earth data transmission systems are constrained by inefficient relay schemes and/or short-duration data transfers at low data rates. Communication systems described herein achieve extremely high burst rate (e.g., 10 Gbps or greater) direct-to-Earth (DTE) data transmission over a free-space optical link between a spacecraft and a remote terminal, which may be a ground terminal or another space terminal. The optical link is established, for example, when the remote terminal is at an elevation of 20° with respect to a horizon of the remote terminal. In some embodiments, a data transmission burst contains at least 1 Terabyte of information, and has a duration of 6 minutes or less. The communication system can include forward error correction by detecting a degradation of a received free-space optical signal and re-transmitting at least a portion of the free-space optical signal.

公开(公告)号：US10680712B2

公开(公告)日：2020-06-09

申请号：US16225073

申请日：2018-12-19

Applicant: Massachusetts Institute of Technology

Inventor： Don M. Boroson ,  Bryan Shawn Robinson ,  Bryan M. Reid

IPC: H04B10/118 ,  H04B10/112 ,  H04J14/02 ,  H04B7/185 ,  H04B10/29 ,  H04B10/40 ,  H04B10/61

Abstract: Traditional satellite-to-earth data transmission systems are constrained by inefficient relay schemes and/or short-duration data transfers at low data rates. Communication systems described herein achieve extremely high burst rate (e.g., 10 Gbps or greater) direct-to-Earth (DTE) data transmission over a free-space optical link between a spacecraft and a remote terminal, which may be a ground terminal or another space terminal. The optical link is established, for example, when the remote terminal is at an elevation of 20° with respect to a horizon of the remote terminal. In some embodiments, a data transmission burst contains at least 1 Terabyte of information and has a duration of 6 minutes or less. The communication system can include forward error correction by detecting a degradation of a received free-space optical signal and re-transmitting at least a portion of the free-space optical signal.