Matches in SemOpenAlex for { <https://semopenalex.org/work/W147546910> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W147546910 abstract "As the S-band spectrum becomes crowded, future space missions will need to consider moving command and telemetry services to Ka-band. NASAs Space Communications and Navigation (SCaN) Testbed provides a software-defined radio (SDR) platform that is capable of supporting investigation of this service transition. The testbed contains two S-band SDRs and one Ka-band SDR. Over the past year, SCaN Testbed has demonstrated Ka-band communications capabilities with NASAs Tracking and Data Relay Satellite System (TDRSS) using both open- and closed-loop antenna tracking profiles. A number of technical areas need to be addressed for successful transition to Ka-band. The smaller antenna beamwidth at Ka-band increases the criticality of antenna pointing, necessitating closed loop tracking algorithms and new techniques for received power estimation. Additionally, the antenna pointing routines require enhanced knowledge of spacecraft position and attitude for initial acquisition, versus an S-band antenna. Ka-band provides a number of technical advantages for bulk data transfer. Unlike at S-band, a larger bandwidth may be available for space missions, allowing increased data rates. The potential for high rate data transfer can also be extended for direct-to-ground links through use of variable or adaptive coding and modulation. Specific examples of Ka-band research from SCaN Testbeds first year of operation will be cited, such as communications link performance with TDRSS, and the effects of truss flexure on antenna pointing." @default.
- W147546910 created "2016-06-24" @default.
- W147546910 creator A5017559633 @default.
- W147546910 creator A5045546616 @default.
- W147546910 creator A5049898760 @default.
- W147546910 creator A5075148754 @default.
- W147546910 creator A5084966653 @default.
- W147546910 creator A5085395552 @default.
- W147546910 date "2014-09-29" @default.
- W147546910 modified "2023-09-23" @default.
- W147546910 title "Studying NASA's Transition to Ka-Band Communications for Low Earth Orbit" @default.
- W147546910 cites W1996338706 @default.
- W147546910 cites W2056586217 @default.
- W147546910 cites W2144237918 @default.
- W147546910 hasPublicationYear "2014" @default.
- W147546910 type Work @default.
- W147546910 sameAs 147546910 @default.
- W147546910 citedByCount "0" @default.
- W147546910 crossrefType "journal-article" @default.
- W147546910 hasAuthorship W147546910A5017559633 @default.
- W147546910 hasAuthorship W147546910A5045546616 @default.
- W147546910 hasAuthorship W147546910A5049898760 @default.
- W147546910 hasAuthorship W147546910A5075148754 @default.
- W147546910 hasAuthorship W147546910A5084966653 @default.
- W147546910 hasAuthorship W147546910A5085395552 @default.
- W147546910 hasConcept C121308736 @default.
- W147546910 hasConcept C127313418 @default.
- W147546910 hasConcept C127413603 @default.
- W147546910 hasConcept C146978453 @default.
- W147546910 hasConcept C183121708 @default.
- W147546910 hasConcept C187107819 @default.
- W147546910 hasConcept C19269812 @default.
- W147546910 hasConcept C2777720951 @default.
- W147546910 hasConcept C29829512 @default.
- W147546910 hasConcept C41008148 @default.
- W147546910 hasConcept C62649853 @default.
- W147546910 hasConcept C76155785 @default.
- W147546910 hasConceptScore W147546910C121308736 @default.
- W147546910 hasConceptScore W147546910C127313418 @default.
- W147546910 hasConceptScore W147546910C127413603 @default.
- W147546910 hasConceptScore W147546910C146978453 @default.
- W147546910 hasConceptScore W147546910C183121708 @default.
- W147546910 hasConceptScore W147546910C187107819 @default.
- W147546910 hasConceptScore W147546910C19269812 @default.
- W147546910 hasConceptScore W147546910C2777720951 @default.
- W147546910 hasConceptScore W147546910C29829512 @default.
- W147546910 hasConceptScore W147546910C41008148 @default.
- W147546910 hasConceptScore W147546910C62649853 @default.
- W147546910 hasConceptScore W147546910C76155785 @default.
- W147546910 hasLocation W1475469101 @default.
- W147546910 hasOpenAccess W147546910 @default.
- W147546910 hasPrimaryLocation W1475469101 @default.
- W147546910 hasRelatedWork W1123734766 @default.
- W147546910 hasRelatedWork W1589528377 @default.
- W147546910 hasRelatedWork W1618678729 @default.
- W147546910 hasRelatedWork W1989318584 @default.
- W147546910 hasRelatedWork W1991504783 @default.
- W147546910 hasRelatedWork W1998433543 @default.
- W147546910 hasRelatedWork W2050365151 @default.
- W147546910 hasRelatedWork W2134990513 @default.
- W147546910 hasRelatedWork W2144237918 @default.
- W147546910 hasRelatedWork W2508052846 @default.
- W147546910 hasRelatedWork W2530279583 @default.
- W147546910 hasRelatedWork W2531908778 @default.
- W147546910 hasRelatedWork W2601119203 @default.
- W147546910 hasRelatedWork W2902425673 @default.
- W147546910 hasRelatedWork W3171236121 @default.
- W147546910 hasRelatedWork W3177940476 @default.
- W147546910 hasRelatedWork W788110961 @default.
- W147546910 hasRelatedWork W885451842 @default.
- W147546910 hasRelatedWork W2860194581 @default.
- W147546910 hasRelatedWork W2910434007 @default.
- W147546910 isParatext "false" @default.
- W147546910 isRetracted "false" @default.
- W147546910 magId "147546910" @default.
- W147546910 workType "article" @default.