Propagation Research Associates

What Propagation Research Associates does

Propagation Research Associates (PRA) is a privately held, founder-led small business founded in 2001 in Marietta, Georgia by Dr. E. Jeff Holder (President) and Susan F. Dugas (Vice President). The company performs research, design, and development of algorithms and hardware for improving signal propagation performance across RF, infrared, and optical sensors, with deep specialization in radar systems design, state estimation, RF propagation modeling, and adaptive signal processing. Its technical core spans the Holographic Receiver and Sidelobe Canceller, the Precision Pulse Positioning System (3PS/3POS) seeker technology, ETEC/TAEM atmospheric effects mitigation systems, anti-jam GPS concepts, sonobuoy tracking for the P-8 program, and supporting MATLAB simulations and C++/GPU real-time radar processor libraries; an on-site RF laboratory supports hardware development up to 20 GHz.

PRA operates as a government-contracting small business whose revenue is generated primarily through the Small Business Innovation Research (SBIR) program. Customers are concentrated in U.S. Government defense agencies — the U.S. Army, U.S. Air Force, AMRDEC, and SMDC — together with major defense primes including Boeing, Lockheed Martin, Northrop Grumman, and Raytheon that act as both collaborators and potential transition paths for SBIR-funded technology. Two strategic partnerships anchor the atmospheric effects product line: with the National Center for Atmospheric Research (NCAR) for tropospheric modeling, and with NASA's Jet Propulsion Laboratory (JPL) extending the system into the ionospheric regime. PRA's defensible position rests on accumulated two-decade domain expertise, a patent-pending adaptive interference cancellation technique, and embedded customer relationships rather than on external capital, scale, or commercial go-to-market infrastructure.

Name

Propagation Research Associates

Legal name

Propagation Research Associates

Website

https://pra-corp.com

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

11–50 employees

Short description

Propagation Research Associates is a privately held Marietta, Georgia small business developing RF propagation, radar, and adaptive signal processing hardware and software for U.S. defense agencies and major defense primes, primarily under SBIR contracts.

Ownership category

akta.pro rank

Headquarters

HQ city

Marietta

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Infrastructure

Revenue model

1. SBIR Government Contracts: Primary revenue source through Small Business Innovation Research (SBIR) program contracts with the U.S. Government for developing cutting-edge defense technologies.
2. Private Industry Contracts: Develops technologies for private industry customers alongside government work.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Propagation Research Associates (PRA) develops proprietary radar signal processing algorithms, RF hardware, and integrated systems that improve signal propagation performance for RF, infrared, and optical sensors. The company sells holographic radar receivers, adaptive interference cancellation processors, precision pulse positioning guidance systems, GPS-based atmospheric effects mitigation systems, RF test hardware, and real-time GPU-based radar processing software to the U.S. Government (primarily through the SBIR program) and private defense industry customers.

Product overview

PRA is a defense and commercial technology company offering specialized hardware products, signal/data processing software, and integrated systems for radar and sensor applications. The portfolio includes the Holographic Receiver and Holographic Sidelobe Canceller for radar interference cancellation; the 3PS/3POS Precision Pulse Positioning System for guidance; ETEC/TAEM systems for atmospheric GPS measurement; and various RF hardware including Doppler Target Generator, ECCM Repeater, GPS Receiver System, and Orthogonal Interferometry Radar Antenna. Software offerings include MATLAB-based simulations for holographic radar and sonobuoy location, plus C++/GPU-based real-time radar processors for pulsed-Doppler processing. These products are supported by systems integration capabilities including fire control systems, position tracking, and atmospheric effects mitigation. PRA maintains an RF laboratory with test capabilities up to 20 GHz.

Differentiator

Problem solved

Functional benefit

Products and services

• Holographic Receiver Radar receiver providing increased dynamic range for strong interference sources by combining analog Holographic and digital interference cancellation; developed under an Air Force SBIR contract and cancels noise jamming using a single radar pulse.
• Holographic Sidelobe Canceller (Holographic SLC) Signal processing system using the Holographic Receiver output to cancel interference, applied to Synthetic Aperture Radar data for noise jammer cancellation.
• Adaptive Interference Cancellation Adaptive cancellation process implementing optimal algorithms including Minimum Variance Distortionless Response (MVDR), Generalized Sidelobe Canceller (GSC), and Capon's Method to mitigate noise jamming, RF interference, and discrete and distributed clutter.
• Precision Pulse Positioning System (3PS/3POS) Semi-active interferometric seeker guidance technique using unique processing algorithms to enhance interceptor effectiveness in short range air defense applications.
• Doppler Target Generator RF hardware product for radar testing, target simulation, and radar testing applications.
• ECCM Repeater Electronic Counter-Countermeasures (ECCM) repeater hardware for electronic protection applications.
• ETEC GPS Receiver System & Antenna Array Multi-GPS receiver system with antenna array that measures excess angle arrival bending effect caused by the troposphere for atmospheric distortion characterization.
• Orthogonal Interferometry Radar Antenna Custom radar antenna system designed for orthogonal interferometry applications.
• Holographic Radar Simulation & Analysis Tools Two MATLAB-based simulations developed to investigate the performance of the Holographic Radar concept, including a 2-D phased-array simulation modeling an ideal Holographic Receiver and a second simulation modeling errors including compression loss.
• Sonobuoy Location System Simulation Detailed MATLAB simulation of two Sonobuoy Location Systems (TDOA/FDOA and R/D) including realistic error sources such as flight path uncertainties, sonobuoy drift, antenna effects, thermal noise, phase errors, and dynamic range considerations.
• Real-time Radar Processor Library C++/GPU library implementing pulsed-Doppler radar processing for LFM and BPSK waveforms in a real-time environment using GPUs for real-time capability at low hardware and development cost.
• Multi-channel Radar Processor Real-time multi-channel pulsed-Doppler interferometric radar processor using BPSK waveforms, with a graphical user interface for viewing range-Doppler maps and tracking data.
• Clutter Mitigation Radar Processor Real-time LFM pulsed-Doppler radar processor developed using the PRA C++/GPU radar library, with graphical user interface for viewing range-Doppler maps and tracking data.
• OI/3PS Fire Control System Prototype fire control system integrating Orthogonal Interferometry (OI) technology with the 3PS seeker for enhanced intercept capability at lower cost with higher performance for asymmetric warfare challenges.
• Total Atmospheric Effects Mitigation (TAEM) System System extending ETEC to include effects of the ionosphere on radar propagation alongside tropospheric effects, developed in partnership with JPL.
• Sonobuoy Position Location and Tracking System Position tracking system including hardware modifications to existing sonobuoy hardware for timing information communication to P8 aircraft, plus signal/data processing for accurate sonobuoy tracking.
• Anti-jam GPS / GPS Denied Networks Concepts for anti-jam GPS networks and GPS-denied networks requiring combined hardware and software development.

Quantifiable outcome

• Cancels noise jamming using a single radar pulse through combined analog holographic and digital interference cancellation
• +2 more outcomes

Named customers6 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature14 records

Partnerships

Two partnerships are on record, tiered core.

• National Center for Atmospheric Research (NCAR)coreTechnology or IntegrationPartnership with NCAR to integrate software that can estimate the refractive and turbulence effects on radar signals caused by the troposphere. This partnership supports the ETEC (Excess Tropospheric Excess Angle rate Correction) system development.
• Jet Propulsion Laboratory (JPL)coreTechnology or IntegrationPartnership with JPL to extend the ETEC system to the Total Atmospheric Effects Mitigation (TAEM) system, adding capabilities to include effects of the ionosphere on radar propagation alongside tropospheric effects.

Scale indicators2 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Mercury Systems: Mid-cap U.S. defense electronics company specializing in mission-critical RF, microwave, and signal-processing subsystems for radar and EW applications — closely aligned with PRA's core RF propagation and radar-processing business.
• Kratos Defense & Security Solutions: Defense contractor with significant business in microwave electronics, unmanned systems, and tactical radar/EW — overlapping directly with PRA's radar and guidance technology focus and similar SBIR/DOD contract sales motion.
• Scientific Research Corporation (SRC): Privately held defense R&D firm delivering radar, electronic warfare, and intelligence systems to DoD customers — same small-innovator model with deep technical bench and SBIR-style contract base as PRA.
• Toyon Research Corporation: Small, privately held defense research company providing signal processing, radar, and algorithm development to government customers — analogous size, mission, and customer profile to PRA.
• ENSCO: Mid-size privately held defense, aerospace, and intelligence firm with comparable SBIR-style research roots and signal-processing/radar systems integration capabilities.
• Mayflower Communications: Small SBIR-driven defense company focused on GPS, anti-jam, and tactical radio — extremely comparable in mission, size, and government contracting model to PRA.

Broad incumbents

• Curtiss-Wright: Large publicly traded defense electronics supplier serving radar, signal processing, and electronic warfare applications across DoD — overlapping capability space but at much greater scale and broader portfolio.
• L3Harris Technologies: Major defense prime with deep business in electronic warfare, radar, and signal processing — overlapping technology domain but at incumbent scale spanning many programs beyond PRA's niche.
• BAE Systems Electronic Systems: Major defense prime's electronic systems segment focused on EW, radar, and sensor processing — broad incumbent serving the same DoD customers PRA addresses via prime-led platform contracts.
• SAIC: Large defense IT and engineering services integrator serving the same U.S. government and intelligence customers — less direct technology overlap but very comparable customer base and SBIR/procurement channels.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

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M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Propagation Research Associates