asteroza + ssp   61

一般財団法人宇宙システム開発利用推進機構
The remains of USEF and a bunch of pseudo JAXA affiliated research centers merged into this it seems
japn  SPS  SSP  space  research  technology 
6 weeks ago by asteroza
Solar Power Satellites
From the guy who gave us HESPeruS, a new shape for an SPS that appears to be more flexible in orientation...
CASSIOPeiA  SPS  SSP  microwave  phased  array  solar  power  helix  heliogyro  molniya  orbit  Delicious 
june 2017 by asteroza
Online Journal of Space Communication
SunSat 2015 thermal design (molten potassium primary loop,steam secondary) to try to avoid rotary power joints. Monolithic circular plate radiator design, as opposed to a thermal segmented design that uses radiator strips capped with concentrator boilers with the radiators ganged together into a big rectangle..
SPS  SSP  space  solar  power  satellite  research  technology  thermal  Delicious 
march 2016 by asteroza
Online Journal of Space Communication
Interesting design, taking the weight hit to use lower power rotary joints. Easier to add solar modules too, but out of plane.
SPS  SSP  space  power  satellite  research  low  multiple  joint  rotary  technology  solar  Delicious 
march 2016 by asteroza
design to cost - HTYP
Keith Henson's thing about laser Skylons to accelerate SPS buildout and reduce launch costs.
laser  skylon  SPS  SBSP  SSP  space  solar  power  satellite  research  concept  Delicious 
may 2014 by asteroza
Rays of Hope with pix1.doc - Google Drive
Proposal for laser boosted Skylons to bootstrap a microwave SPS construction campaign. Neat trick is using an initial bootstrap laser/rectenna sat assembled in LEO, which uses a ground microwave array to electric thrust up to GEO, then uses the same ground microwave array to power laser ops from GEO onto LEO laser skylons and laser tugs. As SPS hardware arrives in GEO, the laser slowly becomes self powered.
rectenna  SSTO  bootstrap  technology  microwave  solar  space  research  propulsion  skylon  proposal  SPS  SSP  power  laser  Delicious 
september 2013 by asteroza
None
IEEE Proceedings for June 2013, lots of SSP wireless power transmission stuff
RF  technology  2013  IEEE  june  WPT  microwave  solar  space  transmission  research  wireless  SPS  SSP  power  Delicious 
july 2013 by asteroza
SSI2010SSPpaper.pdf (application/pdf Object)
Interesting concept for an SPS using a thin film solar cell array operating as a spin stabilized panel, similar to a solar sail. Uses IR power transmission, probably laser based. Unfortunately, the setup for the laser is not ideal, as it would have to have the laser at the rotating center, requiring either a big central power yoke/gymbal with slip ring, or fixed lasers near the center with active beam steering. Actually fixed lasers with that recently developed polarized grating liquid crystal laser beam steering mechanism might work well here since it's solid state.
SPS  SSP  SBSP  space  solar  power  satellite  design  concept  heliogyro  spin  stabilized  electric  sail  laser  IR  beaming  Delicious 
november 2011 by asteroza
SPS-ALPHA: The First Practical Solar Power Satellite via Arbitrarily Large PHased Array « National Space Society Blog
Weird jellyfish design. Something strange about it though. If it has a gravity gradient stabilized antenna pointing down, how does the reflector array operate correctly?
SPS-ALPHA  NASA  NIAC  SBSP  SPS  SSP  space  solar  power  research  module  modular  phased  array  Delicious 
october 2011 by asteroza
http://www.nss.org/settlement/ssp/library/1980NASASPS-LaserStudies-MeteorologicalEffects.pdf
Interesting remark that 1.2 micron lasers on their own have poor atmospheric hole boring capability (11 microns is better for that?), ordinarily requiring an increase in intensity to the point of being weapons grade. But this could be mitigated with a primary continuous wave laser augmented with a pulsed laser at a different frequency to "sweep" the air, dramatically reducing the intensity requirement of the main laser down to aircraft safety levels, but at the cost of increased power usage. Though on clear days this wouldn't be necessary.
SPS  SBSP  SSP  laser  research  CW  continuous  wave  cloud  penetration  hole  boring  Delicious 
october 2011 by asteroza
ACT-RPR-NRG-2009-SPS-ICSOS-concepts-for-laser-WPT.pdf (application/pdf Object)
Interesting stuff about solar pumped laser SPS varieties. But the dangling bit about concentrator powered fiber lasers requires more info.
solar  pumped  laser  wireless  power  transmission  research  space  satellite  SBSP  SSP  SPS  Delicious 
october 2011 by asteroza
Online Journal of Space Communication
Vaguely serious calls for study work, but even the chinese admit defeat in the key area of launch cost reduction, even if everything else works out.
china  CAST  SBSP  SSP  SPS  solar  powerbeaming  satellite  research  power  beaming  Delicious 
october 2011 by asteroza
PROJECT_SERVIS
This is the big USEF japan consortium of companies along with JAXA developing SPS tech, with a nominal target goal of 2030, but utterly not addressing the spacelift cost issue
japan  JAXA  space  solar  power  SBSP  SSP  SPS  remote  beaming  laser  microwave  rectenna  green  energy  satellite  orbital  research  Delicious 
march 2011 by asteroza
ServerSky - Server Sky
Taking a page from space activists, there is a proposal to place large scale datacenters in orbit as a distributed network of satellites, similar to a beefed up Iridium/Globalstar/IMARsat network where large numbers of servers live in the satellite as a server cluster which is itself part of a cluster node network in orbit, possibly with laser crosslinks. Latency issues will probably force the datacenter satellites into LEO/MEO rather than HEO/GEO. There is a roundabout possibility of using space solar power satellites in GEO (or push comes to shove ground stations) to fire laser/microwaves at the datacenter satellites to provide external power. Considering the overall movement towards wireless networks and ubiquitous computing, in may be in the world's best interest to migrate towards this kind of architecture.
ServerSky  orbital  datacenter  server  farm  concept  space  infrastructure  LEO  satellite  SBSP  SSP  green  energy  low  power  global  network  Delicious 
october 2009 by asteroza

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