The Segmented Mirror Telescope (SMT) housed at the Naval Postgraduate School is a unique, state-of-the-art optical instrument built to explore new technologies needed for future spacebased telescopes. A discrete Fourier transform wavefront reconstruction technique developed at Lawrence Livermore National Laboratory is discussed in this thesis as applied to a hexagonal aperture. A Fourier domain implementation of a spatial-frequency modal controller for a simple spring-mass model of a deformable...
Topics: Space telescopes, Holography, Optics, Adaptive
Future space telescopes must maintain lower mass of the mirrors to keep launch cost down while increasing the size and performance of the space telescope. Although much work has been done in both adaptive optics and robust control, this thesis explores the application of several Multi-Input, Multi-Output controller designs for wavefront control of a Segmented Mirror Telescope with 936 actuators and 732 sensors. This thesis builds on previous robust control design by combining classical control...
Topics: Space telescopes, Robust control, Optics, Adaptive, Flexible structures
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Jan 23, 2020
01/20
by
Scott, Elaine, 1940-
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66 p. : 27 cm
Topics: Hubble Space Telescope (Spacecraft) -- Juvenile literature, Hubble Space Telescope (Spacecraft),...
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Jun 16, 2021
06/21
by
Tucker, Wallace H
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221 pages, 13 unnumbered pages of plates : 24 cm
Topics: Hubble Space Telescope (Spacecraft), Telescopes, Astronomy, Astronomers, Télescopes spatiaux,...
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Jul 15, 2018
07/18
by
Angelo, Joseph A
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xv, 288 pages : 25 cm
Topics: Space probes -- Juvenile literature, Astronomical instruments -- Juvenile literature, Astronomical...
Future space telescopes will contain lightweight, flexible, segmented mirrors. Traditional control approaches for mirror alignment and shape control may be inadequate due to flexibilities and low natural frequencies. Using adaptive optics for space telescopes presents a possible solution. This research proposes innovative H[infinity] robust control techniques for these types of systems. An H[infinity] controller is synthesized for a complex analytical model with 997 inputs, 936 outputs, and 332...
Topics: Optics, Adaptive., Robust control, adaptive optics, segmented mirrors, Shack-Hartmann wavefront...
To celebrate World Space Week, Neil deGrasse Tyson, Matt Kirshen and astrophysicist Charles Liu, PhD, answer fan-submitted questions on a variety of celestial topics including parallel universes, solar energy, speed of light travel, Mars, and more!NOTE: StarTalk+ Patrons and All-Access subscribers can watch or listen to this entire episode commercial-free here: https://www.startalkradio.net/show/cosmic-queries-world-space-week/Thanks to this week's Patrons for supporting us: David Vives, Kelly...
Topics: Podcast, Flatland, space exploration, Charles Liu, Moon, fossil fuels, StarTalk Radio, space...
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Topics: Radio Program, Email, Space telescopes
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Topics: Radio Program, Home, Laundry, Space telescopes
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Topics: Radio Program, Education, Space telescopes, Metals
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Topics: Radio Program, Space telescopes, Philosophical terminology
Topics: Radio Program, Philosophical terminology, Space telescopes
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06:00:00PM-08:00:00PM GMT — Stereo Underground Paul Weller, Jamie T, Lene Lovich, Squeeze, Stone Roses, The Freshies, Cast, Teardrop Explodes, Oasis, U2, Magazine, The Vapors Richard Latto brings you music with attitude that defines an alternative spirit.
Topics: Radio Program, Social psychology, Space telescopes
Topics: Radio Program, News, Space telescopes, Social groups
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Topics: Radio Program, Economics terminology, Space telescopes, Breakfasts
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Topics: Radio Program, Fingers, Email, Management, Space telescopes
Topics: Radio Program, Lips, Fairfield, Connecticut, Jesus, Space telescopes
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Topics: Radio Program, Radio formats, Sociology index, Space telescopes, Rooms
Topics: Radio Program, Digital audio, Semiotics, Aesthetics, Space telescopes, Family
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06:00:00PM-08:00:00PM GMT — Stereo Underground Paul Weller, Jamie T, Lene Lovich, Squeeze, Stone Roses, The Freshies, Cast, Teardrop Explodes, Oasis, U2, Magazine, The Vapors Richard Latto brings you music with attitude that defines an alternative spirit.
Topics: Radio Program, Association football midfielders, Social psychology, Space telescopes
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06:00:00PM-08:00:00PM BST — Stereo Underground Echobelly, Sex Pistols, The Cult, REM, Primal Scream, Rudi, Robert Miles, The Jam, The Levellers, The Dickies, Radiohead... Richard Latto brings you music with attitude that defines an alternative spirit.
Topics: Radio Program, Spacecraft launched by Delta II rockets, Space telescopes
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Topics: Radio Program, Spacecraft launched by Delta II rockets, Space telescopes
Topics: Radio Program, Christianity, Creator gods, NASA space probes, Space telescopes
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Topics: Radio Program, Spacecraft launched by Delta II rockets, Space telescopes
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Topics: Radio Program, NASA space probes, Space telescopes, Castles, Rooms, Animal anatomy
Topics: Radio Program, Space telescopes, Optical spectrum, Color, Web colors, Internet slang
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Topics: Radio Program, Arts, NASA space probes, Space telescopes, Locomotion (biological), Aesthetics, Color
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Topics: Radio Program, Spacecraft launched by Delta II rockets, Space telescopes, Chemical elements
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Sac City Redistricting - The Sacramento City Council was expected to vote on the four redistricting plans presented to them by a citizens' committee at the City Council meeting last night, but they put it off to allow for more study of the proposals. Two of the proposals would combine districts, essentially kicking an encumbant out of office. Today on Insight, we'll talk with the Sacramento Bee's Ryan Lillis about the four plans and what's expected to happen next. We'll also get an update on...
Topics: KXJZ, Insight, Sacramento public radio, Capital Public Radio, CSU Sacramento, Sacramento...
Topics: Radio Program, Space telescopes, National symbols of Mongolia, Project management, Balls, Bowling
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Topics: Radio Program, Musical quintets, Space telescopes, Musical trios, Philosophical logic, Mathematical...
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Topics: Radio Program, Recycling, Internet culture, Types of organization, Internet slang, Space telescopes
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Topics: Radio Program, Recycling, Internet slang, Internet culture, Types of organization, Space telescopes
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Topics: Radio Program, English punk rock groups, Christmas, Space telescopes, Internet protocols, Email
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Topics: Radio Program, Spacecraft launched by Delta II rockets, Space telescopes, Legal terms, Color
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Topics: Radio Program, Social psychology, Twitter, NASA space probes, Space telescopes, Social networking...
Topics: Radio Program, Political terminology, Coventry, Space telescopes, Christmas onstage, Childhood,...
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Topics: Radio Program, BBC Radio, Space telescopes, Finance, Machines, Money, Payment systems,...
Topics: Radio Program, Indian River Lagoon, Childhood, Stars, Human behavior, Astrometry, Space telescopes,...
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06:00:00PM-08:00:00PM BST — Stereo Underground Echobelly, Sex Pistols, The Cult, REM, Primal Scream, Rudi, Robert Miles, The Jam, The Levellers, The Dickies, Radiohead... Richard Latto brings you music with attitude that defines an alternative spirit.
Topics: Radio Program, Mass media, Interrogative words and phrases, Economics terminology, Twitter,...
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Topics: Radio Program, Space telescopes, Spacecraft launched by Delta II rockets, Legal terms, Mass media
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Topics: Radio Program, Fingers, Email, Spacecraft launched by Delta II rockets, Space telescopes, Social...
Topics: Radio Program, Broadcasting, Space telescopes, Radio, Mass media, Web colors, Social psychology,...
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Topics: Radio Program, British electronic music groups, NASA space probes, Space telescopes, Missions to...
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Topics: Radio Program, Types of military forces, Special forces, Space telescopes, Military ranks, Social...
Topics: Radio Program, Music, Europe, Republics, Member states of the United Nations, Elementary geometry,...
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Topics: Radio Program, Christmas, Traditions, Virgin Records artists, NASA space probes, Anglican saints,...
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Topics: Radio Program, English male singers, NASA space probes, Space telescopes, Twitter, Floors, Human...
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Topics: Radio Program, NASA space probes, Space telescopes, Missions to the Sun, Broadcasting, Arts, Legal...
Topics: Radio Program, Space telescopes, Business terms, Traditions, Emotion, Political philosophy,...
