Reduced Complexity multi-frequency imaging using active aperture synthesis.
Active imaging utilizes an may of transmitting elements to illuminate a Scene and an array of receiving elements to capture and process the reflections. The narrowband coarray defmition provides a convenient framework for understanding active imaging, and designing schemes to reduce the number of tr...
| Main Authors: | , , , |
|---|---|
| Format: | |
| Language: | English |
| Published: |
2004
|
| Online Access: | http://ezproxy.villanova.edu/login?url=https://digital.library.villanova.edu/Item/vudl:173591 |
| id |
vudl:173591 |
|---|---|
| record_format |
vudl |
| institution |
Villanova University |
| collection |
Digital Library |
| modeltype_str_mv |
vudl-system:CollectionModel vudl-system:CoreModel vudl-system:ResourceCollection |
| datastream_str_mv |
PROCESS-MD AGENTS PARENT-LIST PARENT-LIST-RAW PARENT-QUERY LEGACY-METS LICENSE AUDIT RELS-EXT DC MEMBER-LIST-RAW THUMBNAIL STRUCTMAP MEMBER-QUERY |
| hierarchytype |
|
| hierarchy_all_parents_str_mv |
vudl:469169 vudl:172968 vudl:641262 vudl:3 vudl:1 vudl:173023 |
| sequence_vudl_173023_str |
0000000190 |
| hierarchy_top_id |
vudl:641262 |
| hierarchy_top_title |
Villanova Faculty Publications |
| fedora_parent_id_str_mv |
vudl:469169 vudl:173023 |
| hierarchy_first_parent_id_str |
vudl:173591 |
| hierarchy_parent_id |
vudl:469169 vudl:173023 |
| hierarchy_parent_title |
Fauzia Ahmad Amin Moeness |
| hierarchy_sequence_sort_str |
0000000000 |
| hierarchy_sequence |
0000000000 0000000190 |
| spelling |
Reduced Complexity multi-frequency imaging using active aperture synthesis. Guo, Yi. Kassam, A. Ahmad, Fauzia. Amin, Moeness. Active imaging utilizes an may of transmitting elements to illuminate a Scene and an array of receiving elements to capture and process the reflections. The narrowband coarray defmition provides a convenient framework for understanding active imaging, and designing schemes to reduce the number of transmining and receiving elements required. Widehand signals have been used for active aperture synthetic imaging to obtain range resolution, as well as to improve angular resolution The step- frequency method achieves the effect of short duration pulses through frequency synthesis, and the coarray idea can be applied in this situation also. In this paper, we investigate approaches to reduce the signal processing time and hardware complexity of multkfrequency imging schemes, while still maintaining a reasonable image quality. In one approach we randomly drop points in the frequencycoarray space. Another scheme uses n m w band traosmissions (groups of frequencies) fmm multiple transmitters and results in a pseudorandom placement of frequencycoarray points. Orthogonal transmission of multifrequencies allows simultaneous detection at receivers and reduces image acquisition time. Simulation results show good performance and hardware complexity and acquisition time trade-offs. 2004 Villanova Faculty Authorship vudl:173591 Proceedings of the IEEE AP-S International Symposium 2004 Digest, Monterey, CA, June 2004. en |
| dc.title_txt_mv |
Reduced Complexity multi-frequency imaging using active aperture synthesis. |
| dc.creator_txt_mv |
Guo, Yi. Kassam, A. Ahmad, Fauzia. Amin, Moeness. |
| dc.description_txt_mv |
Active imaging utilizes an may of transmitting elements to illuminate a Scene and an
array of receiving elements to capture and process the reflections. The narrowband
coarray defmition provides a convenient framework for understanding active imaging,
and designing schemes to reduce the number of transmining and receiving elements
required. Widehand signals have been used for active aperture synthetic imaging to
obtain range resolution, as well as to improve angular resolution The step- frequency
method achieves the effect of short duration pulses through frequency synthesis, and the
coarray idea can be applied in this situation also. In this paper, we investigate approaches
to reduce the signal processing time and hardware complexity of multkfrequency
imging schemes, while still maintaining a reasonable image quality. In one approach we
randomly drop points in the frequencycoarray space. Another scheme uses n m w band
traosmissions (groups of frequencies) fmm multiple transmitters and results in a pseudorandom
placement of frequencycoarray points. Orthogonal transmission of multifrequencies
allows simultaneous detection at receivers and reduces image acquisition
time. Simulation results show good performance and hardware complexity and
acquisition time trade-offs. |
| dc.date_txt_mv |
2004 |
| dc.format_txt_mv |
Villanova Faculty Authorship |
| dc.identifier_txt_mv |
vudl:173591 |
| dc.source_txt_mv |
Proceedings of the IEEE AP-S International Symposium 2004 Digest, Monterey, CA, June 2004. |
| dc.language_txt_mv |
en |
| author |
Guo, Yi. Kassam, A. Ahmad, Fauzia. Amin, Moeness. |
| spellingShingle |
Guo, Yi. Kassam, A. Ahmad, Fauzia. Amin, Moeness. Reduced Complexity multi-frequency imaging using active aperture synthesis. |
| author_facet |
Guo, Yi. Kassam, A. Ahmad, Fauzia. Amin, Moeness. |
| dc_source_str_mv |
Proceedings of the IEEE AP-S International Symposium 2004 Digest, Monterey, CA, June 2004. |
| format |
Villanova Faculty Authorship |
| author_sort |
Guo, Yi. |
| dc_date_str |
2004 |
| dc_title_str |
Reduced Complexity multi-frequency imaging using active aperture synthesis. |
| description |
Active imaging utilizes an may of transmitting elements to illuminate a Scene and an
array of receiving elements to capture and process the reflections. The narrowband
coarray defmition provides a convenient framework for understanding active imaging,
and designing schemes to reduce the number of transmining and receiving elements
required. Widehand signals have been used for active aperture synthetic imaging to
obtain range resolution, as well as to improve angular resolution The step- frequency
method achieves the effect of short duration pulses through frequency synthesis, and the
coarray idea can be applied in this situation also. In this paper, we investigate approaches
to reduce the signal processing time and hardware complexity of multkfrequency
imging schemes, while still maintaining a reasonable image quality. In one approach we
randomly drop points in the frequencycoarray space. Another scheme uses n m w band
traosmissions (groups of frequencies) fmm multiple transmitters and results in a pseudorandom
placement of frequencycoarray points. Orthogonal transmission of multifrequencies
allows simultaneous detection at receivers and reduces image acquisition
time. Simulation results show good performance and hardware complexity and
acquisition time trade-offs. |
| title |
Reduced Complexity multi-frequency imaging using active aperture synthesis. |
| title_full |
Reduced Complexity multi-frequency imaging using active aperture synthesis. |
| title_fullStr |
Reduced Complexity multi-frequency imaging using active aperture synthesis. |
| title_full_unstemmed |
Reduced Complexity multi-frequency imaging using active aperture synthesis. |
| title_short |
Reduced Complexity multi-frequency imaging using active aperture synthesis. |
| title_sort |
reduced complexity multi-frequency imaging using active aperture synthesis. |
| publishDate |
2004 |
| normalized_sort_date |
2004-01-01T00:00:00Z |
| language |
English |
| collection_title_sort_str |
reduced complexity multi-frequency imaging using active aperture synthesis. |
| fgs.state_txt_mv |
Active |
| relsext.itemID_txt_mv |
oai:digital.library.villanova.edu:vudl:173591 |
| fgs.lastModifiedDate_txt_mv |
2021-04-12T19:09:57.343Z |
| relsext.hasModel_txt_mv |
http://hades.library.villanova.edu:8080/rest/vudl-system:CollectionModel http://hades.library.villanova.edu:8080/rest/vudl-system:CoreModel http://hades.library.villanova.edu:8080/rest/vudl-system:ResourceCollection |
| fgs.ownerId_txt_mv |
diglibEditor |
| fgs.type_txt_mv |
http://www.w3.org/ns/ldp#Resource http://fedora.info/definitions/v4/repository#Container http://www.w3.org/ns/ldp#BasicContainer http://fedora.info/definitions/v4/repository#Resource http://www.w3.org/ns/ldp#Container http://www.w3.org/ns/ldp#RDFSource |
| relsext.isMemberOf_txt_mv |
http://hades.library.villanova.edu:8080/rest/vudl:469169 http://hades.library.villanova.edu:8080/rest/vudl:173023 |
| relsext.sequence_txt_mv |
vudl:173023#190 |
| fgs.label_txt_mv |
Reduced Complexity multi-frequency imaging using active aperture synthesis. |
| fgs.lastModifiedBy_txt_mv |
fedoraAdmin |
| fgs.createdBy_txt_mv |
fedoraAdmin |
| fgs.createdDate_txt_mv |
2013-01-22T02:59:35.773Z |
| relsext.sortOn_txt_mv |
title |
| relsext.hasLegacyURL_txt_mv |
http://digital.library.villanova.edu/Villanova%20Digital%20Collection/Faculty%20Fulltext/Amin%20Moeness/AminMoeness-7587ce20-ceb2-4eb9-88e0-6848bd79524d.xml |
| has_order_str |
no |
| agent.name_txt_mv |
Falvey Memorial Library, Villanova University KHL |
| license.mdRef_str |
http://digital.library.villanova.edu/copyright.html |
| license_str |
protected |
| has_thumbnail_str |
true |
| THUMBNAIL_contentDigest_digest_str |
203c69e18f4f46c81e9892448d2c07cd |
| first_indexed |
2014-01-11T21:56:02Z |
| last_indexed |
2021-04-12T19:38:29Z |
| _version_ |
1755557595804860416 |
| subpages |