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Company Information:

Company Name: Propagation Research Associates
City: Marietta
State: GA
Zip+4: 30066-
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Website URL: http://pra-corp.com/
Phone: (678) 384-3401

Award Totals:

Program/Phase Award Amount ($) Number of Awards
SBIR Phase I $2,532,356.00 27
SBIR Phase II $10,799,066.00 12
STTR Phase I $270,000.00 3

Award List:

Enhanced Tropospheric Effects Compensation System

Award Year / Program / Phase: 2001 / SBIR / Phase I
Agency / Branch: DOD / MDA
Principal Investigator: E. Jeff Holder, Principal Scientist
Award Amount: $64,996.00
Abstract:
Propagation Research Associates (PRA) introduces an innovative system that willcorrect angle of arrival error for radars tracking long range, low elevation targets.The correction improvement will be an order of magnitude improvement over existingmodel based measurements and will extend time-lines… More

Tomographic Correction Techniques For An Enhanced Tropospheric Effects Compensation System

Award Year / Program / Phase: 2002 / SBIR / Phase I
Agency / Branch: DOD / MDA
Principal Investigator: J. Clayton Kerce, Senior Research Scientist
Award Amount: $69,998.00
Abstract:
"Propagation Research Associates (PRA) introduces two innovative tomographic techniques, based on ground based GPS satellite signal measurements, that significantly improve angle of arrival error correction for radars tracking long range, low elevationtargets. These tomographic techniques provide… More

An Enhanced Tropospheric Effects Compensation System Combining Tomographic and GPS Correction Techniques

Award Year / Program / Phase: 2004 / SBIR / Phase II
Agency / Branch: DOD / MDA
Principal Investigator: Susan F. Dugas, Senior Engineer
Award Amount: $2,736,439.00
Abstract:
Propagation Research Associates (PRA) proposes an innovative system that will correct angle-of-arrival error for radars tracking long range, low elevation targets. The correction improvement will be an order of magnitude improvement over existing model based measurements and will extend time-lines… More

Efficient Radar Polarimeter Technology for Missile Defense

Award Year / Program / Phase: 2004 / SBIR / Phase I
Agency / Branch: DOD / MDA
Principal Investigator: Neal Alexander, Senior Engineer
Award Amount: $99,995.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to develop radar polarimeter technology that will instantaneously measure the parameters of the Stokes vector or Polarization Scattering Matrix (PSM) of a target without requiring additional antennas or antenna elements in Missile Defense… More

Precision Pulse Positioning System

Award Year / Program / Phase: 2005 / SBIR / Phase I
Agency / Branch: DOD / ARMY
Principal Investigator: Brian Stevens, Senior Scientist
Award Amount: $120,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes a Precision Pulse Positioning System (3PS) technology that provides a multi-function capability for force protection including the guidance of multiple low-cost blue interceptors engaging multiple targets, the resolution of the blue air picture,… More

Low Elevation Enhanced Tropospheric Effects Compensation (ETEC) GPS Antenna Array

Award Year / Program / Phase: 2005 / SBIR / Phase I
Agency / Branch: DOD / MDA
Principal Investigator: Susan F. Dugas, Senior Engineer
Award Amount: $100,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) has combined its unique expertise in atmospheric physics and radar signal propagation to develop the Enhanced Tropospheric Effects Compensation (ETEC) System that will compensate for tropospheric bending errors when tracking long-range, low-elevation… More

Optimized State Estimation Algorithms for Fast Hit-to-Kill Engagement

Award Year / Program / Phase: 2005 / SBIR / Phase I
Agency / Branch: DOD / ARMY
Principal Investigator: Susan F. Dugas, Vice President
Award Amount: $70,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) introduces two innovative algorithms to reduce fire control and missile filter transients in short time-of-flight guided missile engagements. A class of Smoothed Iterated Filters is developed as a more efficient implementation of the forward-backward… More

Feasibility Demonstration for the Precision Pulse Positioning System (3PS)

Award Year / Program / Phase: 2006 / SBIR / Phase II
Agency / Branch: DOD / ARMY
Principal Investigator: G. M. Hall, Senior Scientist
Award Amount: $730,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to extend and experimentally validate the results of the Phase I development of the Precision Pulse Positioning System (3PS) technology, which provides a multi-function capability for US Army Force Protection including the guidance of blue… More

The Fast Algorithm for State Estimation (FASE) Software/Hardware-in-the-Loop (S/HWIL) for Real-Time Target Estimation

Award Year / Program / Phase: 2006 / SBIR / Phase II
Agency / Branch: DOD / ARMY
Principal Investigator: Susan F. Dugas, Senior Engineer
Award Amount: $730,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to develop a software/hardware-in-the-loop (S/HWIL) capability that will implement the PRA Fast Algorithms for State Estimation (FASE) in a real-time environment. PRA developed a maximum likelihood estimator and a smoothed iterated filter to… More

Precision Pulse Positioning System Applied to Low-Cost Position and Orientation

Award Year / Program / Phase: 2006 / SBIR / Phase I
Agency / Branch: DOD / ARMY
Principal Investigator: Jim Stagliano, Senior Scientist
Award Amount: $69,999.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to enhance the Precision Pulse Positioning System (3PS) that was developed on previous SBIR contracts to produce a solution for position and orientation of battlefield platforms. The Precision Pulse Positioning System (3PS) technology will… More

The Total Atmospheric Effects Mitigation (TAEM) System for Improved Space Surveillance Radar Performance

Award Year / Program / Phase: 2006 / SBIR / Phase I
Agency / Branch: DOD / USAF
Principal Investigator: Clayton Kerce, Senior Scientist
Award Amount: $97,404.00
Abstract:
PRA proposes to team with JPL to design the Total Atmospheric Effects Mitigation (TAEM) System to include both ionospheric and tropospheric mitigation. This concept builds on PRA's innovative measurement technologies originally developed for the ETEC System and the ionospheric electron density… More

Adaptive Signal Processing to Counter Jamming

Award Year / Program / Phase: 2006 / SBIR / Phase I
Agency / Branch: DOD / USAF
Principal Investigator: David Aalfs, Senior Engineer
Award Amount: $100,000.00
Abstract:
PRA proposes to develop a wideband adaptive digital beamforming solution to autonomously cancel multiple jammers at various locations, bandwidths, and center frequencies. The wide waveform bandwidths desired for fine range resolution in current and future phased-array systems impact the performance… More

Novel ECCM Techniques for Ground-Based Radars

Award Year / Program / Phase: 2007 / SBIR / Phase I
Agency / Branch: DOD / ARMY
Principal Investigator: Susan F. Dugas, Senior Engineer
Award Amount: $69,999.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to develop a combination of waveforms and beamforming techniques that will mitigate both broadband noise and coherent jamming. PRA will focus the development of ECCM techniques applied to the Firefinder EQ-36 radar using the Multi-Mission Radar… More

Atmospheric Effects Mitigation and Enhanced Metrics for Improved Radar Tracking and Handover

Award Year / Program / Phase: 2007 / SBIR / Phase I
Agency / Branch: DOD / MDA
Principal Investigator: J. C. Kerce, Senior Scientist
Award Amount: $100,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes an innovative class of algorithms for ionospheric and tropospheric scintillation effects mitigation that will improve target tracking and handover performance in early warning and tracking Ballistic Missile Defense (BMD) radars. One issue in BMD… More

The Total Atmospheric Effects Mitigation (TAEM) System for Improved Space Surveillance Radar Performance

Award Year / Program / Phase: 2007 / SBIR / Phase II
Agency / Branch: DOD / USAF
Principal Investigator: Robert Bock, Senior Scientist
Award Amount: $886,944.00
Abstract:
PRA proposes to team with JPL to develop the Total Atmospheric Effects Mitigation (TAEM) System to include both ionospheric and tropospheric mitigation for space surveillance radar (SSR) performance enhancement. This concept builds on PRA's innovative measurement technologies originally developed… More

Training Environment Positioning and Orientation System (TEPOS)

Award Year / Program / Phase: 2008 / SBIR / Phase I
Agency / Branch: DOD / USAF
Principal Investigator: Jim Stagliano, Senior Research Scientist
Award Amount: $100,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes the Training Environment Positioning and Orientation System (TEPOS) effort to provide accurate orientation and position information for platforms (participants and devices) within an immersive training environment. Utilizing waveform diversity,… More

Atmospheric Effects Mitigation and Enhanced Metrics for Improved Radar Tracking and Handover

Award Year / Program / Phase: 2008 / SBIR / Phase II
Agency / Branch: DOD / MDA
Principal Investigator: Robert Bock, Senior Research Scientist
Award Amount: $999,999.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to continue its Phase I teaming relationship with Lockheed Martin to develop and demonstrate atmospheric effects mitigation metrics and algorithms for improved Ballistic Missile Defense (BMD) radar tracking and handover. PRA proposes to further… More

Atmospheric Effects Mitigation for Improved Boost Phase Track Correlation Sensor Fusion

Award Year / Program / Phase: 2008 / SBIR / Phase I
Agency / Branch: DOD / MDA
Principal Investigator: Robert Bock, Senior Research Scientist
Award Amount: $100,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to develop multi-spectral track correlation algorithms to improve boost phase track radar-to-radar and optical-to-radar track correlation for multiple sensor fusion. These algorithms will enable enhanced effectiveness in track correlation… More

The Precision Pulse Positioning Orientation System (3POS) for Enhanced Platform Orientation

Award Year / Program / Phase: 2008 / SBIR / Phase II
Agency / Branch: DOD / ARMY
Principal Investigator: Robert Bock, Senior Scientist
Award Amount: $729,999.00
Abstract:
Propagation Research Associates, Inc. (PRA) applied two technologies developed on previous SBIR contracts to develop a Phase I design for a battlefield platform position and orientation determination system. The PRA Precision Pulse Positioning System (3PS) technology provides precise… More

Novel ECCM Techniques for Ground-Based Radars

Award Year / Program / Phase: 2008 / SBIR / Phase II
Agency / Branch: DOD / ARMY
Principal Investigator: Susan Dugas, Senior Engineer
Award Amount: $729,999.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to develop an Electronic Protection (EP) capability for ground based radar that will mitigate both coherent and noise jammers. For the Phase II effort, PRA proposes to develop a combination of waveforms and beamforming techniques that will… More

Lightning Probability Nowcasting and Forecasting with PRA Strike Insight Technology

Award Year / Program / Phase: 2008 / SBIR / Phase I
Agency: DOC
Principal Investigator: James J. Stagliano, Jr., Senior Scientist
Award Amount: $95,000.00
Abstract:
There is a strong correlation between cloud-to-ground (CG) lightning and the altitude of the 40-dBZ radar reflectivity levels with respect to the height of the -100C level. T he proposed Phase I effort will develop an algorithm for lightning probability based upon these studies, perform basic… More

Development of Low-Cost Tracking System for Infantry Training

Award Year / Program / Phase: 2009 / STTR / Phase I
Agency / Branch: DOD / NAVY
Research Institution: University of Florida
Principal Investigator: Jim Stagliano, Senior Scientist
Award Amount: $70,000.00
RI Contact: Roslyn Heath
Abstract:
Propagation Research Associates, Inc. proposes to leverage technology developed in a previous SBIR projects to develop the Training Environment Position and Orientation System (TEPOS) for determination of the position and orientation of each participant's head and limbs as well as devices such as a… More

Innovative Fire Control Radar Technology for Improved Sensing and Engagement of Tactical Short-Range Airborne Threats

Award Year / Program / Phase: 2009 / SBIR / Phase I
Agency / Branch: DOD / ARMY
Principal Investigator: E. Jeff Holder, Principal Research Scientist
Award Amount: $70,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes an innovative distributed aperture radar technology that uses waveform diversity for effective implementation of fire control and engagement capabilities to defeat multiple attacks from any direction. Force protection against low-cost, ballistic… More

Multistatic Sea-Based Radar Concepts and Architectures

Award Year / Program / Phase: 2009 / SBIR / Phase I
Agency / Branch: DOD / MDA
Principal Investigator: Robert Bock, Senior Scientist
Award Amount: $100,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes two time-alignment techniques that can be implemented using existing radar systems to achieve coherency among multiple sea-based radar platforms operating in a multistatic configuration. For the first technique, the baseline multistatic… More

Analog to Information (A2I) Sensing for Software Defined Receivers

Award Year / Program / Phase: 2009 / SBIR / Phase I
Agency / Branch: DOD / NAVY
Principal Investigator: E. Holder, Principal Research Scient
Award Amount: $80,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to design a receiver that will significantly reduce the sample rate required for a pulsed-Doppler EW sensing application using Compressive Sensing (CS) technology. The PRA Adaptive CS receiver will provide a compression in information space that… More

Clutter Mitigation Techniques for Ground-Based, Gr

Award Year / Program / Phase: 2009 / SBIR / Phase I
Agency / Branch: DOD / ARMY
Principal Investigator: James Stagliano, Senior Scientist
Award Amount: $70,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to develop a basic suite of algorithms that will mitigate clutter for ground based radars detecting ground moving targets. PRA will utilize data collected by the Army Research Laboratory Compact Radar (ARL-CR) to design and analyze clutter… More

Track Correlation

Award Year / Program / Phase: 2010 / SBIR / Phase I
Agency / Branch: DOD / MDA
Principal Investigator: Bonnie Valant-Spaight, Senior Research Scientist
Award Amount: $100,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to utilize its unique capabilities in atmospheric effects characterization, atmospheric effects mitigation, and track processing to develop multi-spectral track correlation algorithms to improve boost phase optical-to-radar track correlation for… More

A Distributed Aperture Radar Technology for Enhanced Force Protection Against Tactical Airborne Threats

Award Year / Program / Phase: 2010 / SBIR / Phase II
Agency: DOD
Principal Investigator: E. Holder, Principal Research Scient – (678) 384-3402
Award Amount: $730,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to fabricate and demonstrate the performance of a prototype for the innovative distributed aperture radar technology designed in Phase I. The Phase I technology was designed to use waveform diversity for effective implementation of fire control… More

Harpoon Enhanced Target Selectivity Algorithm (HETSA)

Award Year / Program / Phase: 2010 / SBIR / Phase I
Agency / Branch: DOD / NAVY
Principal Investigator: Jeff Holder, Principal Research Scient
Award Amount: $80,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) teamed with The Boeing Company Naval Weapons Systems (NWS) group proposes to develop the Harpoon Enhanced Target Selectivity Algorithm (HETSA) to optimize target selection in a Harpoon system using a track-while-scan radar. In particular, PRA will… More

An Adaptive Sonobuoy Location System Using Precision Time and Frequency

Award Year / Program / Phase: 2010 / SBIR / Phase I
Agency / Branch: DOD / NAVY
Principal Investigator: Jeff Holder, Principal Research Scient
Award Amount: $80,000.00
Abstract:
Propagation Research Associates, Inc., teamed with Ultra Electronics UnderSea Sensor Systems Inc., with support from Boeing Integrated Defense Systems proposes to design and assess the performance of a Sonobuoy Location System (SLS) that implements the latest digital synchronization technology to… More

Low-Cost Chaos Radar

Award Year / Program / Phase: 2011 / STTR / Phase I
Agency / Branch: DOD / ARMY
Research Institution: Duke University
Principal Investigator: G. M. Hall, Senior Research Scientist – (678) 384-3403
Award Amount: $100,000.00
RI Contact: Susan Lasley
Abstract:
Propagation Research Associates, Inc., (PRA) and Duke University propose to extend the recent developments of matched filtered chaos into a low-cost high range-resolution chaotic waveform radar. In the Phase I effort, PRA and Duke will design the radar system and build a prototype waveform… More

The Holographic Sidelobe Canceller: Holographic Radar Processing for Interference Mitigation

Award Year / Program / Phase: 2011 / STTR / Phase I
Agency / Branch: DOD / USAF
Research Institution: Georgia Tech Research Institute
Principal Investigator: E. J. Holder, President – (678) 384-3402
Award Amount: $100,000.00
RI Contact: Sophia Herbert-Peterson
Abstract:
ABSTRACT: Propagation Research Associates, Inc., (PRA) and the Georgia Tech Research Institute (GTRI) are teamed to propose an innovative holographic receiver and processing technology for enhanced radar electronic protection. PRA/GTRI will investigate applying holographic processing to Synthetic… More

Multimode Tracking for Next Generation Over the Horizon Radar Real-Time Ionospheric Correction

Award Year / Program / Phase: 2011 / SBIR / Phase I
Agency: DOD
Principal Investigator: Jim Stagliano, Senior Scientist – (678) 384-3413
Award Amount: $100,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to develop a real-time error correction processor using multimode tracking for over the horizon radar. In particular, PRA will leverage its extensive experience in propagation effects and tracking algorithms coupled with target selectivity… More

Low Elevation Track Correlation in Support of Ascent Phase Intercept

Award Year / Program / Phase: 2011 / SBIR / Phase II
Agency: DOD
Principal Investigator: Bonnie Valant-Spaight, Senior Research Scientist – (678) 384-3418
Award Amount: $1,000,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to utilize its unique capabilities in atmospheric effects characterization, atmospheric effects mitigation, and track processing to develop multispectral track correlation algorithms to improve boost phase optical-to-radar track correlation for… More

Clutter Mitigation Techniques for Ground-Based, Ground Moving Target Radars

Award Year / Program / Phase: 2011 / SBIR / Phase II
Agency: DOD
Principal Investigator: James Stagliano, Senior Scientist – (678) 384-3413
Award Amount: $375,686.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to expand upon the results from the Phase I effort by continuing to improve upon the basic suite of algorithms that will mitigate clutter for ground based radars detecting ground moving targets and by integrating the clutter mitigation algorithms… More

Reducing Impact of Severe Space Weather on Global Positioning System (GPS) Satellite Users

Award Year / Program / Phase: 2012 / SBIR / Phase I
Agency: DOC
Principal Investigator: Bonnie Valant-Spaight – (678) 384-3418
Award Amount: $95,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to utilize its unique capabilities in atmospheric effects characterization and GPS signal processing to develop algorithms that nowcast ionospheric scintillation at GPS frequencies. To this end, PRA proposes to partner with the Jet Propulsion… More

Mitigation of the effects of the ionosphere on UEWR

Award Year / Program / Phase: 2012 / SBIR / Phase I
Agency: DOD
Principal Investigator: Bonnie Valant-Spaight, Senior Research Scientist – (678) 384-3418
Award Amount: $100,000.00
Abstract:
Propagation Research Associates, Inc., (PRA) proposes to utilize its unique capabilities in atmospheric effects characterization, atmospheric effects mitigation, and track processing to characterize and improve tracking and object classification under conditions of ionospheric scintillation for… More

High Range Resolution Radar for Flightline Boundary Surveillance

Award Year / Program / Phase: 2012 / SBIR / Phase I
Agency: DOD
Principal Investigator: Jim Stagliano, Senior Research Scientist – (678) 384-3413
Award Amount: $150,000.00
Abstract:
ABSTRACT: Propagation Research Associates, Inc. (PRA) teamed with FLIR (previously ICx) proposes to leverage the work performed under a previous Phase II contract that involved clutter mitigation for ground based ground moving target radars. PRA plans to integrate automatic target recognition… More

Reducing Impact of Severe Space Weather on Global Positioning System (GPS) Satellite Users

Award Year / Program / Phase: 2013 / SBIR / Phase II
Agency / Branch: DOC / NOAA
Principal Investigator: Bonnie Valant-Spaight, Head of Atmospheric Physics Division – (678) 384-3418
Award Amount: $400,000.00
Abstract:
In Phase II, Propagation Research Associates, Inc., (PRA) proposes to complete the development of a real-time nowcast of ionospheric scintillation impacts on GPS users. Continuing its partnership with NASA’s Jet Propulsion Laboratory, PRA will implement real-time production of a map of ionospheric… More

Measurements from Mobile GPS for Ionospheric Awareness

Award Year / Program / Phase: 2013 / SBIR / Phase I
Agency: DOD
Principal Investigator: Bonnie Valant-Spaight, Senior Scientist – (678) 384-3418
Award Amount: $150,000.00
Abstract:
ABSTRACT: Propagation Research Associates, Inc., (PRA), teamed with the Jet Propulsion Laboratory (JPL), proposes to design and evaluate an algorithm to produce useful measurements of the state of the ionosphere from Global Positioning System (GPS) equipment used on mobile platforms. We will… More

Orthogonal Space Projection Processing with Optimized Waveform Selection for Discrete Clutter Mitigation

Award Year / Program / Phase: 2013 / SBIR / Phase I
Agency / Branch: DOD / ARMY
Principal Investigator: E. J. Holder, President – (678) 384-3402
Award Amount: $99,965.00
Abstract:
PRA is proposing an innovative Orthogonal Space Projection (OSP) processing technology and a parallel processing architecture to adaptively cancel discrete clutter in real-time. The OSP technique utilizes adaptive waveform diversity with a suite of waveforms with low correlation time-sidelobes. In… More

High Range Resolution Radar for Flightline Boundary Surveillance

Award Year / Program / Phase: 2014 / SBIR / Phase II
Agency: DOD
Principal Investigator: Jim Stagliano, Senior Scientist – (678) 384-3413
Award Amount: $750,000.00
Abstract:
ABSTRACT: In Phase I, PRA working with FLIR modified the command and control (C2) software for their Ranger series of perimeter surveillance radars to meet requirements for flightline boundary surveillance. These radars are ideal for this mission with a 30 cm range resolution,>97% probability of… More