Matches in SemOpenAlex for { <https://semopenalex.org/work/W844546196> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W844546196 abstract "A wavefront-correction system has been proposed as part of an outer-space radio communication system that would include a large, somewhat flexible main reflector antenna, a smaller subreflector antenna, and a small array feed at the focal plane of these two reflector antennas. Part of the wavefront-correction system would reside in the subreflector, which would be a planar patch-element reflectarray antenna in which the phase shifts of the patch antenna elements would be controlled via microelectromechanical systems (MEMS) radio -frequency (RF) switches. The system would include the following sensing-and-computing subsystems: a) An optical photogrammetric subsystem built around two cameras would estimate geometric distortions of the main reflector; b) A second subsystem would estimate wavefront distortions from amplitudes and phases of signals received by the array feed elements; and c) A third subsystem, built around small probes on the subreflector plane, would estimate wavefront distortions from differences among phases of signals received by the probes. The distortion estimates from the three subsystems would be processed to generate control signals to be fed to the MEMS RF switches to correct for the distortions, thereby enabling collimation and aiming of the received or transmitted radio beam to the required precision." @default.
- W844546196 created "2016-06-24" @default.
- W844546196 creator A5022666762 @default.
- W844546196 creator A5023385531 @default.
- W844546196 creator A5028553067 @default.
- W844546196 creator A5085467623 @default.
- W844546196 creator A5088837000 @default.
- W844546196 date "2010-05-01" @default.
- W844546196 modified "2023-09-27" @default.
- W844546196 title "Wavefront Correction for Large, Flexible Antenna Reflector" @default.
- W844546196 hasPublicationYear "2010" @default.
- W844546196 type Work @default.
- W844546196 sameAs 844546196 @default.
- W844546196 citedByCount "0" @default.
- W844546196 crossrefType "journal-article" @default.
- W844546196 hasAuthorship W844546196A5022666762 @default.
- W844546196 hasAuthorship W844546196A5023385531 @default.
- W844546196 hasAuthorship W844546196A5028553067 @default.
- W844546196 hasAuthorship W844546196A5085467623 @default.
- W844546196 hasAuthorship W844546196A5088837000 @default.
- W844546196 hasConcept C120665830 @default.
- W844546196 hasConcept C121332964 @default.
- W844546196 hasConcept C126780896 @default.
- W844546196 hasConcept C138949660 @default.
- W844546196 hasConcept C151764478 @default.
- W844546196 hasConcept C165699331 @default.
- W844546196 hasConcept C194257627 @default.
- W844546196 hasConcept C21822782 @default.
- W844546196 hasConcept C24890656 @default.
- W844546196 hasConcept C2776257435 @default.
- W844546196 hasConcept C2778415886 @default.
- W844546196 hasConcept C2982854487 @default.
- W844546196 hasConcept C34445779 @default.
- W844546196 hasConcept C41008148 @default.
- W844546196 hasConcept C43117628 @default.
- W844546196 hasConcept C520434653 @default.
- W844546196 hasConcept C76155785 @default.
- W844546196 hasConceptScore W844546196C120665830 @default.
- W844546196 hasConceptScore W844546196C121332964 @default.
- W844546196 hasConceptScore W844546196C126780896 @default.
- W844546196 hasConceptScore W844546196C138949660 @default.
- W844546196 hasConceptScore W844546196C151764478 @default.
- W844546196 hasConceptScore W844546196C165699331 @default.
- W844546196 hasConceptScore W844546196C194257627 @default.
- W844546196 hasConceptScore W844546196C21822782 @default.
- W844546196 hasConceptScore W844546196C24890656 @default.
- W844546196 hasConceptScore W844546196C2776257435 @default.
- W844546196 hasConceptScore W844546196C2778415886 @default.
- W844546196 hasConceptScore W844546196C2982854487 @default.
- W844546196 hasConceptScore W844546196C34445779 @default.
- W844546196 hasConceptScore W844546196C41008148 @default.
- W844546196 hasConceptScore W844546196C43117628 @default.
- W844546196 hasConceptScore W844546196C520434653 @default.
- W844546196 hasConceptScore W844546196C76155785 @default.
- W844546196 hasLocation W8445461961 @default.
- W844546196 hasOpenAccess W844546196 @default.
- W844546196 hasPrimaryLocation W8445461961 @default.
- W844546196 hasRelatedWork W1609640555 @default.
- W844546196 hasRelatedWork W1841256928 @default.
- W844546196 hasRelatedWork W1845025697 @default.
- W844546196 hasRelatedWork W1982320973 @default.
- W844546196 hasRelatedWork W2027779927 @default.
- W844546196 hasRelatedWork W2044423981 @default.
- W844546196 hasRelatedWork W2061613543 @default.
- W844546196 hasRelatedWork W2084341504 @default.
- W844546196 hasRelatedWork W2087899136 @default.
- W844546196 hasRelatedWork W2121214779 @default.
- W844546196 hasRelatedWork W2160755606 @default.
- W844546196 hasRelatedWork W2534626599 @default.
- W844546196 hasRelatedWork W2537420930 @default.
- W844546196 hasRelatedWork W2595402242 @default.
- W844546196 hasRelatedWork W2972471573 @default.
- W844546196 hasRelatedWork W3003747093 @default.
- W844546196 hasRelatedWork W3133628272 @default.
- W844546196 hasRelatedWork W3169041166 @default.
- W844546196 hasRelatedWork W613640682 @default.
- W844546196 hasRelatedWork W816420584 @default.
- W844546196 isParatext "false" @default.
- W844546196 isRetracted "false" @default.
- W844546196 magId "844546196" @default.
- W844546196 workType "article" @default.