Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Richard D. Griffin"'
Autor:
Richard D. Griffin, Malcolm K. Cleaveland, Matthew D. Therrell, David W. Stahle, Rodofo Acuna-Soto
Publikováno v:
FEMS Microbiology Letters
During the 16th century, Mexico suffered a demographic catastrophe with few parallels in worlds history. In 1519, the year of the arrival of the Spaniards, the population in Mexico was estimated to be between 15 and 30 million inhabitants. Eighty-one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a3132024aed8efdf149ac489b5875b5
https://doi.org/10.1016/j.femsle.2004.09.011
https://doi.org/10.1016/j.femsle.2004.09.011
Publikováno v:
Applied optics. 30(2)
We have demonstrated and analyzed an analog electronic constant false alarm rate processor that discriminates against distributed clutter for an acoustooptic correlator of a potentially large time-bandwidth product.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::061bdbb1674f3dc0290dcecd041bd3ff
https://pubmed.ncbi.nlm.nih.gov/20581966
https://pubmed.ncbi.nlm.nih.gov/20581966
Publikováno v:
Applied optics. 28(18)
An acoustooptic technique was used to design and construct a prototype of a processor capable of multiplying a 128 x 128 complex-element matrix by a 128 complex-element vector. The device was specified to execute 10(5) matrix-vector products per seco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aaadbec3e0d0f0f49689b6fa1b1b8641
https://pubmed.ncbi.nlm.nih.gov/20555788
https://pubmed.ncbi.nlm.nih.gov/20555788
Publikováno v:
SPIE Proceedings.
We have designed and are building an acousto-optic, one- dimensional, space-integrating wide band optical correlator that is interfaced to a high-performance parallel computer (HPC) signal processing system through multiple 100 MB/s High Performance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba3a224b4a25bc6fe629cd1e17f2bcd9
https://doi.org/10.1117/12.177713
https://doi.org/10.1117/12.177713
Autor:
John N. Lee, Richard D. Griffin
Publikováno v:
Applied Optics. 33:6774
We describe the design and development of an acousto-optical wideband correlator that we integrated into a digital signal-processing system testbed. We report its measured performance and compare it with various theoretical performance measures, one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f20033f5dbe7d1ae391fad2853cf3367
https://doi.org/10.1364/ao.33.006774
https://doi.org/10.1364/ao.33.006774
Publikováno v:
Annual Meeting Optical Society of America.
A time-domain beam former spatially filters signals by weighting, delaying, and coherently summing the outputs of an array of sensors. Since a wavefront propagating across the array arrives at different sensors at different times, this operation can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c3736336ddd5241c9c9c4bfe8dd3d44
https://doi.org/10.1364/oam.1986.tus3
https://doi.org/10.1364/oam.1986.tus3
Publikováno v:
Annual Meeting Optical Society of America.
Functions of two independent variables are often produced by manipulating, e.g., correlating, data fields or sequences. Two commonly encountered examples are the ambiguity function and the Wigner distribution. The amplitudes of such functions may be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ca3e231c94b5b4a948dfd81c8bbba65
https://doi.org/10.1364/oam.1987.ml5
https://doi.org/10.1364/oam.1987.ml5
Publikováno v:
Annual Meeting Optical Society of America.
Although 2-D optical signal processors inherently have a higher bandwidth than 1-D processors, the postprocessing load is also higher. In particular, nonuniformities and buildup in the background level often must be corrected dynamically before featu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13cdadb9f1f6c2e539be2e2a35eb126c
https://doi.org/10.1364/oam.1987.ml4
https://doi.org/10.1364/oam.1987.ml4
An Acousto-Optic Technique is used to design and construct a prototype of a processor capable of multiplying a 128 x 128 element matrix by a 128 element vector. The elements of the matrix and the vectors are complex numbers. The device is specified t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c233001d9c3247584aaf87dd54e1b9a
https://doi.org/10.21236/ada207933
https://doi.org/10.21236/ada207933
Publikováno v:
Optics Letters. 11:821
We report on an optical implementation of a time-domain beam former that uses a low-cost, low-power, two-dimensional spatial light modulator (liquid-crystal television) to generate eight beams from eight sensors. The optical architecture can be class
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4df18371e133cb089362ab6cd00860bf
https://doi.org/10.1364/ol.11.000821
https://doi.org/10.1364/ol.11.000821