Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Michael A. Hawks"'
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 60:1-15
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 37:777-788
Daytime spectral sky radiance, or sky brightness, is deceptively complex to predict accurately. The Laser Environmental Effects Definition and Reference (LEEDR) first-principles atmospheric model propagates the spectral radiance of the sun to a senso
Autor:
Tyler Brewer, Michael R. Hawks
Publikováno v:
Image Sensing Technologies: Materials, Devices, Systems, and Applications VIII.
Event-based cameras use in-pixel analog processing to respond to changes in illumination (events). Pixels report events asynchronously, enabling very fast response and reduced data volumes compared to conventional frame- based arrays. The asynchronou
Publikováno v:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXX.
Electro-optical and infrared (EO/IR) sensor and scene generation models are useful tools that can facilitate understanding the behavior of an imaging system and its data processing chain under myriad scenarios without expensive and time-consuming tes
Publikováno v:
2019 IEEE Aerospace Conference.
This research outlines the expected performance and limitations of a ground-based shortwave infrared (SWIR) sensor in performance of the daytime geosynchronous satellite (GEO) custody mission with a generalized signal-to-noise ratio (SNR) approach mo
Autor:
L. A. (Vern) Schlie, Glen P. Perram, Michael R. Hawks, Robert D. Loper, Athanasios Gavrielides
Publikováno v:
Laser Resonators, Microresonators, and Beam Control XX.
Diode-pumped alkali metal vapor lasers (DPAL) offer significant promise for high average power. The DPAL system has high gain and will high output coupling and an unstable resonator to achieve excellent beam quality. We analyze the Rb-He system using
Publikováno v:
Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XXIII.
Through numerical simulation, we have demonstrated a novel snapshot spectral imaging concept using binary diffractive optics. Binary diffractive optics, such as Fresnel zone plates (FZP) or photon sieves, can be used as the single optical element in
Autor:
Athanasios Gavrielides, Robert D. Loper, L. A. (Vern) Schlie, Glen P. Perram, Michael R. Hawks
Publikováno v:
SPIE Proceedings.
The high gain Diode Pumped Alkali Laser (DPAL) system will require an unstable resonator with high Fresnel number and high output coupling to achieve excellent beam quality. Coupling of the diode pump and laser radiation fields is dramatic in the DPA
Autor:
Robert D. Golden, Hyunchul Kim, Robert V O'Toole, Bryant W. Oliphant, Michael A. Hawks, Joseph E. Strauss, Adam H. Hsieh, Jason W. Nascone
Publikováno v:
Clinical Biomechanics. 28:886-891
Background We assessed the biomechanical performances of a trochanteric lag screw construct and a traditional inverted triangle construct in the treatment of simulated Pauwels type 3 femoral neck fractures. Methods An inverted triangle construct (thr
Publikováno v:
Airborne Intelligence, Surveillance, Reconnaissance (ISR) Systems and Applications XIII.
Increases in the number of cameras deployed, frame rate, and detector array sizes have led to a dramatic increase in the volume of motion imagery data that is collected. Without a corresponding increase in analytical manpower, much of the data is not