Matches in SemOpenAlex for { <https://semopenalex.org/work/W1664617055> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W1664617055 startingPage "96199" @default.
- W1664617055 abstract "NASA Marshall Space Flight Center's (MSFC) EXperimental Vector Magnetograph (EXVM) polarimeter measures the sun's vector magnetic field. These measurements are taken to improve understanding of the sun's magnetic field in the hopes to better predict solar flares. Part of the procedure for the EXVM requires image motion stabilization over a period of a few minutes. A high speed tracker can be used to reduce image motion produced by wind loading on the EXVM, fluctuations in the atmosphere and other vibrations. The tracker consists of two elements, an image motion detector and a control system. The image motion detector determines the image movement from one frame to the next and sends an error signal to the control system. For the ground based application to reduce image motion due to atmospheric fluctuations requires an error determination at the rate of at least 100 hz. It would be desirable to have an error determination rate of 1 kHz to assure that higher rate image motion is reduced and to increase the control system stability. Two algorithms are presented that are typically used for tracking. These algorithms are examined for their applicability for tracking sunspots, specifically their accuracy if only one column and one row of CCD pixels are used. To examine the accuracy of this method two techniques are used. One involves moving a sunspot image a known distance with computer software, then applying the particular algorithm to see how accurately it determines this movement. The second technique involves using a rate table to control the object motion, then applying the algorithms to see how accurately each determines the actual motion. Results from these two techniques are presented." @default.
- W1664617055 created "2016-06-24" @default.
- W1664617055 creator A5089755600 @default.
- W1664617055 date "1996-10-01" @default.
- W1664617055 modified "2023-09-24" @default.
- W1664617055 title "A Real-Time Position-Locating Algorithm for CCD-Based Sunspot Tracking" @default.
- W1664617055 hasPublicationYear "1996" @default.
- W1664617055 type Work @default.
- W1664617055 sameAs 1664617055 @default.
- W1664617055 citedByCount "0" @default.
- W1664617055 crossrefType "journal-article" @default.
- W1664617055 hasAuthorship W1664617055A5089755600 @default.
- W1664617055 hasConcept C10138342 @default.
- W1664617055 hasConcept C10161872 @default.
- W1664617055 hasConcept C11413529 @default.
- W1664617055 hasConcept C115961682 @default.
- W1664617055 hasConcept C120665830 @default.
- W1664617055 hasConcept C121332964 @default.
- W1664617055 hasConcept C124774092 @default.
- W1664617055 hasConcept C154945302 @default.
- W1664617055 hasConcept C15744967 @default.
- W1664617055 hasConcept C160633673 @default.
- W1664617055 hasConcept C162324750 @default.
- W1664617055 hasConcept C19417346 @default.
- W1664617055 hasConcept C198082294 @default.
- W1664617055 hasConcept C27402916 @default.
- W1664617055 hasConcept C2775936607 @default.
- W1664617055 hasConcept C2779020251 @default.
- W1664617055 hasConcept C31972630 @default.
- W1664617055 hasConcept C41008148 @default.
- W1664617055 hasConcept C94915269 @default.
- W1664617055 hasConcept C96566525 @default.
- W1664617055 hasConceptScore W1664617055C10138342 @default.
- W1664617055 hasConceptScore W1664617055C10161872 @default.
- W1664617055 hasConceptScore W1664617055C11413529 @default.
- W1664617055 hasConceptScore W1664617055C115961682 @default.
- W1664617055 hasConceptScore W1664617055C120665830 @default.
- W1664617055 hasConceptScore W1664617055C121332964 @default.
- W1664617055 hasConceptScore W1664617055C124774092 @default.
- W1664617055 hasConceptScore W1664617055C154945302 @default.
- W1664617055 hasConceptScore W1664617055C15744967 @default.
- W1664617055 hasConceptScore W1664617055C160633673 @default.
- W1664617055 hasConceptScore W1664617055C162324750 @default.
- W1664617055 hasConceptScore W1664617055C19417346 @default.
- W1664617055 hasConceptScore W1664617055C198082294 @default.
- W1664617055 hasConceptScore W1664617055C27402916 @default.
- W1664617055 hasConceptScore W1664617055C2775936607 @default.
- W1664617055 hasConceptScore W1664617055C2779020251 @default.
- W1664617055 hasConceptScore W1664617055C31972630 @default.
- W1664617055 hasConceptScore W1664617055C41008148 @default.
- W1664617055 hasConceptScore W1664617055C94915269 @default.
- W1664617055 hasConceptScore W1664617055C96566525 @default.
- W1664617055 hasLocation W16646170551 @default.
- W1664617055 hasOpenAccess W1664617055 @default.
- W1664617055 hasPrimaryLocation W16646170551 @default.
- W1664617055 hasRelatedWork W102618542 @default.
- W1664617055 hasRelatedWork W1578685202 @default.
- W1664617055 hasRelatedWork W2054655840 @default.
- W1664617055 hasRelatedWork W2078979982 @default.
- W1664617055 hasRelatedWork W2081750360 @default.
- W1664617055 hasRelatedWork W2087065083 @default.
- W1664617055 hasRelatedWork W2092976695 @default.
- W1664617055 hasRelatedWork W2362232924 @default.
- W1664617055 hasRelatedWork W2394158166 @default.
- W1664617055 hasRelatedWork W2467579838 @default.
- W1664617055 hasRelatedWork W2766022324 @default.
- W1664617055 hasRelatedWork W2769280980 @default.
- W1664617055 hasRelatedWork W3123428154 @default.
- W1664617055 hasRelatedWork W83276415 @default.
- W1664617055 hasRelatedWork W2468132187 @default.
- W1664617055 hasRelatedWork W2621598304 @default.
- W1664617055 hasRelatedWork W2814871354 @default.
- W1664617055 hasRelatedWork W2850788224 @default.
- W1664617055 hasRelatedWork W2866679807 @default.
- W1664617055 hasRelatedWork W3018288892 @default.
- W1664617055 hasVolume "98" @default.
- W1664617055 isParatext "false" @default.
- W1664617055 isRetracted "false" @default.
- W1664617055 magId "1664617055" @default.
- W1664617055 workType "article" @default.