Time filter

Source Type

Springfield, VA, United States

Agency: NSF | Branch: Continuing grant | Program: | Phase: AERONOMY | Award Amount: 230.92K | Year: 2011

This project will investigate sources of short-period gravity waves at high polar latitudes as well as the atmospheric conditions which influence their propagation. This investigation will utilize measurements of gravity waves and mesospheric wind speeds acquired by an all-sky imager and meteor radar co-located at Rothera on the Antarctic Peninsula. The observed wave data will be analyzed in conjunction with the Navy Operational Global Atmospheric Prediction System Advanced High Altitude (NOGAPS-ALPHA) forecasting and data assimilative model of the upper atmosphere, along with a Fourier ray tracing model for localization of wave source regions. This analysis will result in an identification of dominant wave sources at high latitudes, including an assessment of the importance of orographic waves, as well as a characterization of atmospheric conditions which affect wave ducting and propagation.

Agency: Department of Defense | Branch: Missile Defense Agency | Program: SBIR | Phase: Phase II | Award Amount: 749.85K | Year: 2010

The Ballistic Missile Defense System’s (BMDS’s) ability to detect and track enemy missiles against earth terrain backgrounds, including any intervening clouds, requires prior knowledge of the environmental radiance conditions to support the development of optimal sensors and detection approaches. There is a need for an architecture that efficiently and seamlessly unifies terrain and cloud models in a consistent and fully integrated computer environment. Computational Physics, Inc. (CPI) demonstrated in Phase I an architecture for simulating terrain and cloud UV/VIS/IR imagery called the Global-scene Architecture for Integrated atmosphere, terrain, and cloud Analysis (GAIA). In Phase II, CPI proposes to evolve the GAIA prototype into a fully implemented model that incorporates terrain altitude and land cover, terrain material optical and thermal properties, cloud structure and microphysics, and ingestion of satellite imagery and data products, with a state-of-the-art capability for representing scene observables in the UV/VIS/IR portions of the spectrum. GAIA will include error/uncertainty estimates using well-defined statistical measures. GAIA’s capability and feasibility will be demonstrated using real world airborne and satellite mission scenarios, and validated against satellite imagery. GAIA will implement an architecture that can be efficiently and consistently interfaced with existing computer modeling environments, such as the FLITES or SSGM codes.

Agency: Department of Defense | Branch: Missile Defense Agency | Program: SBIR | Phase: Phase II | Award Amount: 1.00M | Year: 2011

Next generation ballistic missile warning, defense and surveillance systems need to anticipate, through modeling and simulation, the background radiation of the battlespace environment, including geometries that intercept the ocean background. This objective requires prior knowledge of the environmental radiance conditions for development of optimal sensors and detection approaches. Much work has been done to create ocean background models, but what is needed is an innovative architecture that efficiently and seamlessly unifies existing, improved, and/or new computer code, along with access to satellite measurements of ocean parameters, in a consistent and fully integrated computer environment that can be utilized in a plug-and-play fashion by state-of-the-art background radiation codes, such as SAMM, FLITES, the Synthetic Scene Generation Model (SSGM), and the Objective Simulation Framework (OSF) to meet missile warning and defense surveillance needs. This proposed effort will result in an innovative software product called the OCEANUS (Ocean Universal Scene) Model. OCEANUS will provide MDA with an innovative ocean scene model that incorporates ocean composition, ocean dynamics, the marine boundary layer, the land-sea interface, and the ocean observables in the ultraviolet, visible, and infrared portions of the spectrum.

Agency: Department of Defense | Branch: Missile Defense Agency | Program: SBIR | Phase: Phase I | Award Amount: 100.00K | Year: 2011

Higher resolution optical sensors are driving requirements for highly detailed representations of natural background surfaces and man-made objects for real-time scene generators used in development of Ballistic Missile Defense Systems (BMDS). New methods are critically needed to represent such structures that are computationally efficient enough for scene generators to support the high frame rates and physical accuracy required by the MDA mission. CPI believes this can be achieved through careful selection of key physics elements and contributors to scene signatures, as well as judicious choice of the spatial-spectral resolution for the scenario of interest. CPI proposes to accomplish this by developing Visible and Infrared Scenes for Tactical Environments (VISTE), a software product for generating background scenes using these ideas, and that seamlessly interfaces with existing scene generation tools such as FLITES. VISTE will support a user-friendly application programming interface to generate background scenes and run BMDS simulations for defined use case scenarios. The innovative aspect will be a robust integrated run-time framework that intelligently selects the resolution needed to generate high speed and high fidelity representation of complex scenes given user-supplied inputs. VISTE will be a stand-alone background scene generator and scene simulator controller, with visualization of the simulation results.

Agency: Department of Defense | Branch: Missile Defense Agency | Program: SBIR | Phase: Phase II | Award Amount: 646.84K | Year: 2009

Computational Physics, Inc. (CPI) proposes to expand its robust prototype earthshine/skyshine architecture, named Shine, into a fully functional, first-principles model that facilitates the assessment of the impact of infrared, visible, and ultraviolet earthshine and skyshine on missile defense systems. CPI will develop and integrate terrain and cloud components into Shine that will take advantage of widely available satellite imagery. Models of the moon, bright planets, and bright stars will also be included as skyshine components, and a first-principles auroral oval radiance scene model will be developed. CPI will incorporate into Shine improved versions of the standard atmospheric radiation transport models SAMM2 and AURIC. The Shine architecture will incorporate the use of fast running algorithms developed within the computer graphics community and take advantage of massively parallel computing hardware. In order to enhance its earthshine capabilities and to better support the stimulation of MDA optical sensors, Shine will be integrated into the FLITES code. FLITES is the next-generation optical signature code that will be used throughout the DoD to support targeting algorithm development programs and measurement and signature intelligence activities. Its improved capabilities will be of great benefit to the missile defense community.

Discover hidden collaborations