Products

Photo of Sensor Texture Maps Sensor Texture Maps™
Development and delivery of custom geo-specific or geo-typical texture map products for use in high-fidelity sensor simulation. Sensor Texture Maps enable existing image generation systems to simulate correlated out-the-window sensor views. Typical products include WITmaps™ (wavelength independent texture maps or material coded textures), RADmaps™ (infrared radiance texture maps), and RHOmaps™ (infrared Photo showing PRA Toolkit simulationsreflectance maps).

PRA Toolkit™
PRA Toolkit is a robust scene simulation environment for the design, development, test, and post-launch assessment of advanced sensor systems.

Photo of HYPEX imagery HYPEX™
HYPEX software environment provides sophisticated physics-based modeling and data exploitation of hyperspectral imagery.



 

System Simulation Toolkit. The Siimulation Solution.

System Simulation Toolkit (SST)
The System Simulation Toolkit (SST) is a Simulation Framework being developed for the virtual prototyping of spacecraft and spacecraft interactions with the natural environment.

Photo of SVPlume image rendering SVPlume™
SV Plume provide real-time radiometrically correct plume image rendering from 2-20 microns. SVPlume is integrated with MultiGen-Paradigm Inc.'s SensorVision.

 

VISIG™
VISIG produces high fidelity, time varying image radiance maps and intensity signatures of spaceborne objects. VISIG uses the OpenGL interface to graphics hardware to efficiently remove hidden surfaces, cast solar shadows, and compute multiple reflections.

GeoServer®
GeoServer GeoServer is an integrated product used to broker, archive, discover, exploit and disseminate geospatial information. GeoServer's web centric client-servermodel provides access to integrated raster and vector geospatial data using a browser interface.

Services

Background Simulations
Chart showing Background Simulations

PRA's radiometrically correct background simulations cover the full spectrum from RF through UV. These simulations are derived from worldwide databases of Terrain Elevation Maps produced by the Defense Mapping Agency and Material Composition Maps produced by the LANDSAT Program.

Radiative Environment Modeling
PRA's radiometrically correct background simulations cover the full spectrum from RF through UV. These simulations are derived from worldwide databases of Terrain Elevation Maps produced by the Defense Mapping Agency and Material Composition Maps produced by the LANDSAT Program.

Graphic demonstrating Target Signature Modeling Target Signature Modeling
Target signature codes are used for simulation of the time-varying passive optical signatures of ground and air vehicles, exo-atmospheric targets, and satellites. PRA has developed a number of these codes for several government and industrial customers and has a great deal of experience predicting optical signatures for a variety of government programs.

VISIG is a solid-body signature estimation and visualization tool. Object radiance is calculated in a user specified waveband as the sum of components due to self-emission, reflected sunshine and reflected earthshine. OpenGL graphics routines are used to remove hidden surfaces, compute solar shadows, calculate view factors for multiple reflections and render images of then object.

Photo of Synthetic Scene Generation Modeling Synthetic Scene Generation Modeling
Target signature codes are used for simulation of the time-varying passive optical signatures of ground and air vehicles, exo-atmospheric targets, and satellites. PRA has developed a number of these codes for several government and industrial customers and has a great deal of experience predicting optical signatures for a variety of government programs.

VISIG is a solid-body signature estimation and visualization tool. Object radiance is calculated in a user specified waveband as the sum of components due to self-emission, reflected sunshine and reflected earthshine. OpenGL graphics routines are used to remove hidden surfaces, compute solar shadows, calculate view factors for multiple reflections and render images of then object.

Signal Processing and Exploitation Algorithms
Signal Processing and Exploitation Algorithms is one of PRA's major technology areas. This includes the development of innovative high performance processing algorithms for detecting, recognizing, tracking and characterizing targets in a variety of applications. A critical thrust in our approach is to incorporate our observables knowledge and models in the processing algorithms. The two cornerstone concepts for our processing approaches are Signal Subspace Filtering and Embedded Physics Models.Four applications that utilize these cornerstone techniques include:

  • CC&D Detection using Spectral Matched Filtering
  • Exploitation using Embedded Physics-based Modeling
  • Midcourse Discrimination using Temporal Features
  • Tracking using Embedded Models

The Spectral Matched Filter (SMF) is a signal subspace technique that provides optimal background suppression/target detection capabilities for processing multi/hyper spectral measurements. SMF has demonstrated its effectiveness in CC&D (Conceal, Camouflage and Denial) problems such as detection at camouflaged tanks as shown and submerged submarines. This has been combined with spatial/temporal Subspace Projection (applied on space surveillance programs such as SBIRS) to provide a multidimensional signal subspace approach for processing staring sensor measurements.

PRA has also developed advanced classification techniques that depend on training with large observables databases that are efficiently generated with PRA's background and target models. These classifiers have been applied to the midcourse object discrimination in National (LSI, SBIRS Lo) and Theater (Navy Wide) Defense problems.

Embedding PRA's physics models in our processing approach has been successfully applied to Directed Energy Weapon (DEW) tracking/aimpoint selection and most recently to the detection and quantification of industrial gas effluents. The extended missile tracking algorithm augments spatial plume parameters with missile metric states in an Extended Kalman Filter Structure. The gas quantification processing employs PRA's hifidelity atmospheric code (MOSART) and a fluid dynamic/radiative transfer model (EPM) within a non-linear estimation structure that utilizes a generic search algorithm. This algorithm, EQUIM, processes MWIR and LWIR hyperspectral cubes to detect specific gases and estimate their concentrations.

PRA has developed capabilities in Genetic Algorithms, Probablistic Neural Networks, Wavelets and Discrete Region Classifiers and is currently investigating new applications in Weather Processing, Hyperspectral Exploitation, Astronomy and Bio-Infomatics.

Mission Planning and Data Collection
PRA's Mission Planning and Data Collection service includes Pre-mission Planning, In Field Support, and Post Collection and Data Organization and Distribution.

Pre-mission Planning: assistance with target selection (materials, paints, vehicles), target deployment, GPS locations for targets, participating in the development of the collect schedule, identification of potential field collection resources, and logistics planning and support. In Field Support: provide logistics support and incidental supply acquisition, target deployment, document daily activities, log field reports and document deployment changes during collect, ancillary data collection (e.g. weather imagery).

Post Collection & Data Organization and Distribution: Use in-field documentation to document all data (sensor and ancillary) and collect activities. Gather all data from collection sensors/participants, validate media and data formats, and data distribution. Document all collection deployments, ground truth and activities, develop and publish a Quick Look Data Report, verify sensor data and sensor document and format, distribute collection data archive.

Spectral Exploitation
Target signature codes are used for simulation of the time-varying passive optical signatures of ground and air vehicles, exo-atmospheric targets, and satellites. PRA has developed a number of these codes for several government and industrial customers and has a great deal of experience predicting optical signatures for a variety of government programs.

Systems Engineering and Technical Assessment (SETA)
PRA provides technical support to government and aerospace customers in the areas of:

  • Data Analysis
  • Phenomenology Modeling
  • Technology Planning
  • Mission Planning
  • Electro-Optical system validation
  • Radar system validation
  • Remote Sensing
  • Data Management

PRA’s technical knowledge allows customers to make informed decisions within these areas. PRA’s software simulation capability aids in this technical support.

Customers include the Ballistic Missile Defense Organization, the US Army Space and Missile Defense Command, the Director of Defense Research and Engineering and the Defense Modeling and Simulation Office.

Measurement and Signature Intelligence (MASINT)
PRA's Mission Planning and Data Collection service includes Pre-mission Planning, In Field Support, and Post Collection and Data Organization and Distribution.

Pre-mission Planning: assistance with target selection (materials, paints, vehicles), target deployment, GPS locations for targets, participating in the development of the collect schedule, identification of potential field collection resources, and logistics planning and support. In Field Support: provide logistics support and incidental supply acquisition, target deployment, document daily activities, log field reports and document deployment changes during collect, ancillary data collection (e.g. weather imagery).

Post Collection & Data Organization and Distribution: Use in-field documentation to document all data (sensor and ancillary) and collect activities. Gather all data from collection sensors/participants, validate media and data formats, and data distribution. Document all collection deployments, ground truth and activities, develop and publish a Quick Look Data Report, verify sensor data and sensor document and format, distribute collection data archive.

 

Top of the Page