Matches in SemOpenAlex for { <https://semopenalex.org/work/W2099681809> ?p ?o ?g. }
Showing items 1 to 69 of
69
with 100 items per page.
- W2099681809 abstract "The accuracy of tracking measurements using very long baseline interferometer (VLBI) is seriously limited due to angular and temporal separation between the calibration and spacecraft measurements. Same beam interferometry, where the calibration source is in the same primary beam as the spacecraft being observed eliminates temporal affects and considerably reduces calibration errors due to reduced angular separation between the calibrator and the spacecraft which minimizes errors due to propagation variations and uncertainty in geometry between source and baseline. With the current measurement methods this requires having a suitable calibration source of enough signal strength within the primary beam of the antennas used for the inteferometry measurements. Normally such sources are not available because of a low number density of suitable strong calibration sources. However there are many more weaker calibration sources and it may be possible to use combined signal from a number of weaker sources within the primary beam of the antennas if a single strong source is not available within the primary beam at any time. The probability of having enough combined total signal increases considerably if we accept using multiple calibration sources. Expected accuracy of a tracking measurement using signal from multiple calibration sources should be similar to the accuracy expected with a single calibration source within the beam, if the total combined signal from the individual weaker sources is similar to the desired single source. An important point that is worth noting here is that if we want to take advantage of utilizing the same beam interferometry for accurate spacecraft tracking most of the times, then the diameter of the antennas of the proposed array-based deep space network (DSN Array) should be limited to as small a value as practical to give a large field of view. This would enable having suitable calibration source(s) within the primary beam of the antennas. Considering practical aspects it appears that the diameter for the proposed DSN array antenna should be limited to a maximum of about 12 m." @default.
- W2099681809 created "2016-06-24" @default.
- W2099681809 creator A5015203632 @default.
- W2099681809 date "2008-03-01" @default.
- W2099681809 modified "2023-10-02" @default.
- W2099681809 title "Same Beam Tracking with the Proposed DSN Array Using Calibration Signal from Multiple Sources" @default.
- W2099681809 cites W1658675419 @default.
- W2099681809 cites W2058676854 @default.
- W2099681809 cites W3006003338 @default.
- W2099681809 doi "https://doi.org/10.1109/aero.2008.4526348" @default.
- W2099681809 hasPublicationYear "2008" @default.
- W2099681809 type Work @default.
- W2099681809 sameAs 2099681809 @default.
- W2099681809 citedByCount "0" @default.
- W2099681809 crossrefType "proceedings-article" @default.
- W2099681809 hasAuthorship W2099681809A5015203632 @default.
- W2099681809 hasConcept C120665830 @default.
- W2099681809 hasConcept C121332964 @default.
- W2099681809 hasConcept C127313418 @default.
- W2099681809 hasConcept C1276947 @default.
- W2099681809 hasConcept C15744967 @default.
- W2099681809 hasConcept C165838908 @default.
- W2099681809 hasConcept C166689943 @default.
- W2099681809 hasConcept C168834538 @default.
- W2099681809 hasConcept C19417346 @default.
- W2099681809 hasConcept C199360897 @default.
- W2099681809 hasConcept C2775936607 @default.
- W2099681809 hasConcept C2779843651 @default.
- W2099681809 hasConcept C29829512 @default.
- W2099681809 hasConcept C41008148 @default.
- W2099681809 hasConcept C44870925 @default.
- W2099681809 hasConcept C62520636 @default.
- W2099681809 hasConcept C62649853 @default.
- W2099681809 hasConcept C79896159 @default.
- W2099681809 hasConceptScore W2099681809C120665830 @default.
- W2099681809 hasConceptScore W2099681809C121332964 @default.
- W2099681809 hasConceptScore W2099681809C127313418 @default.
- W2099681809 hasConceptScore W2099681809C1276947 @default.
- W2099681809 hasConceptScore W2099681809C15744967 @default.
- W2099681809 hasConceptScore W2099681809C165838908 @default.
- W2099681809 hasConceptScore W2099681809C166689943 @default.
- W2099681809 hasConceptScore W2099681809C168834538 @default.
- W2099681809 hasConceptScore W2099681809C19417346 @default.
- W2099681809 hasConceptScore W2099681809C199360897 @default.
- W2099681809 hasConceptScore W2099681809C2775936607 @default.
- W2099681809 hasConceptScore W2099681809C2779843651 @default.
- W2099681809 hasConceptScore W2099681809C29829512 @default.
- W2099681809 hasConceptScore W2099681809C41008148 @default.
- W2099681809 hasConceptScore W2099681809C44870925 @default.
- W2099681809 hasConceptScore W2099681809C62520636 @default.
- W2099681809 hasConceptScore W2099681809C62649853 @default.
- W2099681809 hasConceptScore W2099681809C79896159 @default.
- W2099681809 hasLocation W20996818091 @default.
- W2099681809 hasOpenAccess W2099681809 @default.
- W2099681809 hasPrimaryLocation W20996818091 @default.
- W2099681809 hasRelatedWork W1630787165 @default.
- W2099681809 hasRelatedWork W163312886 @default.
- W2099681809 hasRelatedWork W2099681809 @default.
- W2099681809 hasRelatedWork W2114264171 @default.
- W2099681809 hasRelatedWork W2154947271 @default.
- W2099681809 hasRelatedWork W2227841266 @default.
- W2099681809 hasRelatedWork W2374542466 @default.
- W2099681809 hasRelatedWork W2391301894 @default.
- W2099681809 hasRelatedWork W2957980740 @default.
- W2099681809 hasRelatedWork W2104907846 @default.
- W2099681809 isParatext "false" @default.
- W2099681809 isRetracted "false" @default.
- W2099681809 magId "2099681809" @default.
- W2099681809 workType "article" @default.