Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Stephen Kozacik"'
Autor:
Stephen Kozacik, Adam J. Rutkowski, Zachary El-Azom, Dennis W. Prather, Thomas E. Dillon, Christopher A. Schuetz, Shouyuan Shi, Andrew Wright
Publikováno v:
2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID).
We present a passive millimeter wave imager for aerial vehicle navigation in degraded visual and GPS-denied environments. The sensor employs aperture synthesis imaging techniques with optical upconversion of millimeter wave signals and coherent recon
Publikováno v:
Long-Range Imaging II.
Video tracking of rocket launches inherently must be done from long range. Due to the high temperatures produced, cameras are often placed far from launch sites and their distance to the rocket increases as it is tracked through the flight. Consequen
Publikováno v:
Long-Range Imaging II.
Long range telescopic video imagery of distant terrestrial scenes, aircraft, rockets and other aerospace vehicles can be a powerful observational tool. But what about the associated acoustic activity? A new technology, Remote Acoustic Sensing (RAS),
Publikováno v:
Long-Range Imaging II.
Methods to reconstruct pictures from imagery degraded by atmospheric turbulence have been under development for decades. The techniques were initially developed for observing astronomical phenomena from the Earth’s surface, but have more recently b
Publikováno v:
Long-Range Imaging II.
Modern digital imaging systems are susceptible to degraded imagery because of atmospheric turbulence. Notwithstanding significant improvements in resolution and speed, significant degradation of captured imagery still hampers system designers and ope
Publikováno v:
SPIE Proceedings.
Domain-specific languages are a useful tool for productivity allowing domain experts to program using familiar concepts and vocabulary while benefiting from performance choices made by computing experts. Embedding the domain specific language into an
Publikováno v:
Long-Range Imaging II.
Atmospheric turbulence degrades imagery by imparting scintillation and warping effects that can reduce the ability to identify key features of the subjects. While visually, a human can intuitively understand the improvement that turbulence mitigation
Autor:
Larry R. Dalton, Ilya Kosilkin, Benjamin C. Olbricht, David L. K. Eng, Stephen Kozacik, Dennis W. Prather, Dylan D. Ross, Shouyuan Shi, John P. Wilson
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 19:190-195
Emerging systems requiring large-scale manufacture and monolithic integration of photonic components have created demand for inexpensive and scalable processes for the production of conformal, low-drive voltage, and high bandwidth EO modulators. This
Publikováno v:
SPIE Proceedings.
When capturing image data over long distances (0.5 km and above), images are often degraded by atmospheric turbulence, especially when imaging paths are close to the ground or in hot environments. These issues manifest as time-varying scintillation a