Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Dennis C. Ghiglia"'
Publikováno v:
GEOPHYSICS. 65:426-436
Frequency‐domain shot‐record migration can produce higher quality images than Kirchhoff migration but typically at a greater cost. The computing cost of shot‐record migration is the product of the number of shots in the survey and the expense o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7bc3ee96cc3db17f509f908712559d3
https://doi.org/10.1190/1.1444737
https://doi.org/10.1190/1.1444737
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 30:827-835
The phase gradient autofocus (PGA) technique for phase error correction of spotlight mode synthetic aperture radar (SAR) imagery is examined carefully in the context of four fundamental signal processing steps that constitute the algorithm. We demons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db6cc7719c4239a4e0deb4daa81fab90
https://doi.org/10.1109/7.303752
https://doi.org/10.1109/7.303752
Publikováno v:
The International Journal of Supercomputing Applications. 7:97-112
Near-real-time digital formation of large synthetic aper ture radar (SAR) images requires the computational throughput that only a dedicated special processor or a massively parallel computer can offer. This article documents the implementation of di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4245c0b1cd56df87e99709ce378d89d5
https://doi.org/10.1177/109434209300700202
https://doi.org/10.1177/109434209300700202
Autor:
Louis A. Romero, Dennis C. Ghiglia
Publikováno v:
Optics letters. 14(20)
Obtaining robust phase estimates from phase differences is a problem common to several areas of importance to the optics and signal-processing communities. Specific areas of application include speckle imaging and interferometry, adaptive optics, com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::561d33b049d1204deb1ff5adede766fc
https://pubmed.ncbi.nlm.nih.gov/19753070
https://pubmed.ncbi.nlm.nih.gov/19753070
Autor:
Dennis C. Ghiglia
Publikováno v:
Optics letters. 7(12)
A binary-mask multiplexing method is developed that provides a means of recovering phase information unambiguously from measurements of the modulus of masked complex waves in the object and image planes, respectively. The technique is developed from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcde767e655a4ab5975bc4d6e9266d88
https://pubmed.ncbi.nlm.nih.gov/19714105
https://pubmed.ncbi.nlm.nih.gov/19714105
Publikováno v:
The Digital Signal Processing workshop.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e0a21a3f370e397811300fdcfe131ae
https://doi.org/10.1109/dspws.1992.665579
https://doi.org/10.1109/dspws.1992.665579
Autor:
Paul H. Eichel, Dennis C. Ghiglia, Daniel E. Wahl, Louis A. Romero, Gary A. Mastin, Charles V. Jakowatz
Publikováno v:
Sixth Multidimensional Signal Processing Workshop.
Summary form only given. A recently developed synthetic aperture radar (SAR) autofocus technique called the phase gradient autofocus (PGA) algorithm is considered. it has been developed to mitigate the problem of phase error compensation, which is co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa4a8ee97deec37815e4bef0bcbe5a60
https://doi.org/10.1109/mdsp.1989.97023
https://doi.org/10.1109/mdsp.1989.97023
Publikováno v:
Proceedings of IEEE 6th Digital Signal Processing Workshop.
This paper demonstrates how certain concepts from the Phase Gradient Autofocus (PGA) algorithm for automated refocus of spotlight mode SAR imagery may be used to design a similar algorithm that applies to SAR imagery formed in the conventional strip-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54b427b695eb951d84eb40b217051454
https://doi.org/10.1109/dsp.1994.379875
https://doi.org/10.1109/dsp.1994.379875
Autor:
Dennis C. Ghiglia, Daniel E. Wahl
Publikováno v:
Proceedings of IEEE 6th Digital Signal Processing Workshop.
All prior interferometric SAR imaging experiments to date dealt with pairwise processing. Simultaneous image collections from two antenna systems or two-pass single antenna collections are processed as interferometric pairs to extract corresponding p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a55a8985a28b4f213749d1071bb3ff5
https://doi.org/10.1109/dsp.1994.379880
https://doi.org/10.1109/dsp.1994.379880
Publikováno v:
SPIE Proceedings.
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Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::470b6e52ae7c0a323c0ac3712b4edaf2
https://doi.org/10.1117/12.409267
https://doi.org/10.1117/12.409267