Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/605162
Full metadata record
DC FieldValueLanguage
dc.contributor.authorWei Wangen_US
dc.contributor.authorRobert Wangen_US
dc.contributor.authorYunkai Dengen_US
dc.contributor.authorWei Xuen_US
dc.contributor.authorLili Houen_US
dc.date.accessioned2020-05-20T09:01:26Z-
dc.date.available2020-05-20T09:01:26Z-
dc.date.issued2016en_US
dc.identifier.issn1751-8784en_US
dc.identifier.issn1751-8792en_US
dc.identifier.other10.1049/iet-rsn.2015.0276en_US
dc.identifier.urihttp://localhost/handle/Hannan/138812en_US
dc.identifier.urihttp://localhost/handle/Hannan/605162-
dc.description.abstractFor the next generation of space-borne synthetic aperture radar (SAR) remote sensing satellites, high resolution and wide coverage are important goals. Digital beam forming (DBF) with multiple channels in elevation (e.g.SCan-On-REceive) is a promising candidate to cover ultra-wide swaths. This scheme could increase the receiver gain and signal-to-noise ratio so as to enhance the performance of an SAR system. As the swath width expanding, ultra-wide beam in range for illuminated scene is needed. However, in this case, the signals received by different channels cannot always be co-registered during the receiving window before combining them due to the imaging geometry of the DBF-SAR system. The relative migration would cause gain loss while performing DBF. In this study, according to the geometric relationship among the receiving channels, the migration of signal received by each elevation channel is analysed and the explicit expressions are derived in detail. Then, an improved DBF approach based on scaling function is proposed for registering the received signals of different channels and combining them. This proposed process can be implemented with better performance than other approach. Finally, the simulation results validate this improved method.en_US
dc.publisherIEEEen_US
dc.relation.haspart7397088.pdfen_US
dc.subjectreceiver gain|DBF|ultrawide beam|SAR|signal-to-noise ratio|digital beamforming approach|imaging geometry|remote sensing satellites|multichannel synthetic aperture radar system|scaling functionen_US
dc.titleImproved digital beam-forming approach with scaling function for range multi-channel synthetic aperture radar systemen_US
dc.typeArticleen_US
dc.journal.volume10en_US
dc.journal.issue2en_US
dc.journal.titleIET Radar, Sonar & Navigationen_US
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7397088.pdf693.05 kBAdobe PDFThumbnail
Preview File
Full metadata record
DC FieldValueLanguage
dc.contributor.authorWei Wangen_US
dc.contributor.authorRobert Wangen_US
dc.contributor.authorYunkai Dengen_US
dc.contributor.authorWei Xuen_US
dc.contributor.authorLili Houen_US
dc.date.accessioned2020-05-20T09:01:26Z-
dc.date.available2020-05-20T09:01:26Z-
dc.date.issued2016en_US
dc.identifier.issn1751-8784en_US
dc.identifier.issn1751-8792en_US
dc.identifier.other10.1049/iet-rsn.2015.0276en_US
dc.identifier.urihttp://localhost/handle/Hannan/138812en_US
dc.identifier.urihttp://localhost/handle/Hannan/605162-
dc.description.abstractFor the next generation of space-borne synthetic aperture radar (SAR) remote sensing satellites, high resolution and wide coverage are important goals. Digital beam forming (DBF) with multiple channels in elevation (e.g.SCan-On-REceive) is a promising candidate to cover ultra-wide swaths. This scheme could increase the receiver gain and signal-to-noise ratio so as to enhance the performance of an SAR system. As the swath width expanding, ultra-wide beam in range for illuminated scene is needed. However, in this case, the signals received by different channels cannot always be co-registered during the receiving window before combining them due to the imaging geometry of the DBF-SAR system. The relative migration would cause gain loss while performing DBF. In this study, according to the geometric relationship among the receiving channels, the migration of signal received by each elevation channel is analysed and the explicit expressions are derived in detail. Then, an improved DBF approach based on scaling function is proposed for registering the received signals of different channels and combining them. This proposed process can be implemented with better performance than other approach. Finally, the simulation results validate this improved method.en_US
dc.publisherIEEEen_US
dc.relation.haspart7397088.pdfen_US
dc.subjectreceiver gain|DBF|ultrawide beam|SAR|signal-to-noise ratio|digital beamforming approach|imaging geometry|remote sensing satellites|multichannel synthetic aperture radar system|scaling functionen_US
dc.titleImproved digital beam-forming approach with scaling function for range multi-channel synthetic aperture radar systemen_US
dc.typeArticleen_US
dc.journal.volume10en_US
dc.journal.issue2en_US
dc.journal.titleIET Radar, Sonar & Navigationen_US
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7397088.pdf693.05 kBAdobe PDFThumbnail
Preview File
Full metadata record
DC FieldValueLanguage
dc.contributor.authorWei Wangen_US
dc.contributor.authorRobert Wangen_US
dc.contributor.authorYunkai Dengen_US
dc.contributor.authorWei Xuen_US
dc.contributor.authorLili Houen_US
dc.date.accessioned2020-05-20T09:01:26Z-
dc.date.available2020-05-20T09:01:26Z-
dc.date.issued2016en_US
dc.identifier.issn1751-8784en_US
dc.identifier.issn1751-8792en_US
dc.identifier.other10.1049/iet-rsn.2015.0276en_US
dc.identifier.urihttp://localhost/handle/Hannan/138812en_US
dc.identifier.urihttp://localhost/handle/Hannan/605162-
dc.description.abstractFor the next generation of space-borne synthetic aperture radar (SAR) remote sensing satellites, high resolution and wide coverage are important goals. Digital beam forming (DBF) with multiple channels in elevation (e.g.SCan-On-REceive) is a promising candidate to cover ultra-wide swaths. This scheme could increase the receiver gain and signal-to-noise ratio so as to enhance the performance of an SAR system. As the swath width expanding, ultra-wide beam in range for illuminated scene is needed. However, in this case, the signals received by different channels cannot always be co-registered during the receiving window before combining them due to the imaging geometry of the DBF-SAR system. The relative migration would cause gain loss while performing DBF. In this study, according to the geometric relationship among the receiving channels, the migration of signal received by each elevation channel is analysed and the explicit expressions are derived in detail. Then, an improved DBF approach based on scaling function is proposed for registering the received signals of different channels and combining them. This proposed process can be implemented with better performance than other approach. Finally, the simulation results validate this improved method.en_US
dc.publisherIEEEen_US
dc.relation.haspart7397088.pdfen_US
dc.subjectreceiver gain|DBF|ultrawide beam|SAR|signal-to-noise ratio|digital beamforming approach|imaging geometry|remote sensing satellites|multichannel synthetic aperture radar system|scaling functionen_US
dc.titleImproved digital beam-forming approach with scaling function for range multi-channel synthetic aperture radar systemen_US
dc.typeArticleen_US
dc.journal.volume10en_US
dc.journal.issue2en_US
dc.journal.titleIET Radar, Sonar & Navigationen_US
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7397088.pdf693.05 kBAdobe PDFThumbnail
Preview File