Digital Radio Frequency Memory (DRFM) Technology

  • Overview
  • Course Content
  • Requirements & Materials

Digital Radio Frequency Memory (DRFM) Technology

Course Description

This course is a unique deep dive Digital Radio Frequency Memory (DRFM) technology presented by Georgia Tech Research Institute Angry Kitten DRFM system design experts. New sections discuss military operational impact perspectives and Tactics Technique and Procedure (TTP) development. Popular live DRFM hardware demonstrations are presented in class to aid understanding of principles discussed in lectures. In addition, DRFM theory and fundamentals lessons will be augmented with discussions and examples of lessons learned from decades of operational DFRM development, Electronic Attack/Electronic Protection (EA/EP) field testing, military exercise planning, and Electronic Warfare (EW) battle management.

Course Content


  • Motivation to study DRFM technology
  • Types of EA: Noise, Transponder, Coherent Repeater
  • Examples of current DRFM hardware
  • Radar system review


  • DRFM theory of operation
  • Masking and deception techniques
  • DRFM testing
  • Live in-class DRFM demonstrations


  • RF receiver
  • Frequency converters
  • Oscillators and frequency synthesizers


  • DRFM kernel design
  • Digital components: field-programmable gate array (FPGA), analog-to-digital converter (ADC), digital-to-analog converter (DAC)
  • ESM Pulse Repetition Interval (PRI) tracking


  • Operational impact examples
  • Synthetic Aperture Radar (SAR) EA
  • Counter DRFM EP techniques
  • EW test considerations
Requirements & Materials

Important Information

This course requires Need-to-Know Certification and a clearance requirement. Please make sure to read the Course Restrictions section below before registering for this course.



Course Restrictions

This course is classified. Attendance is restricted to US citizens with the appropriate security clearance and need-to-know. All contractors wishing to attend our Need-To-Know Classified Course must have a US Government sponsor’s/contracting officer’s signature. Research Security will ONLY process Need-To-Know Certification and Clearance Form with the appropriate signature. There will be no exemptions to this policy. Eligibility questions should be directed to 404-407-6374. Attendees must e-mail the Need-to-Know Certificate Form to or fax to 404-407-9395. Electronic devices, including but not limited to laptops, calculators, Fitbits and Garmins, are not permitted in the classroom. Limited storage compartments may be available in some location.

Session Details

  • Special Discounts: Georgia Tech Research Institute (GTRI) employees are eligible to receive a discount.  If you are a GTRI employee, please go to the Organizational Development website and look for the coupon code under GT Professional Development. Review coupon instructions for more information.

Who Should Attend

This course is designed for engineers, technologists, and military EW operational specialists interested in DRFM EA and/or EP should attend. Anyone involved in design, analysis, simulation, performance specification, or test and evaluation of EW systems utilizing DRFM devices will benefit from the course. Completing a basic radar system course or experience with modern radar systems is recommended.

Adult professional attending defense tech course

What You Will Learn

  • Why DRFMs are a game changing EA enabling technology
  • DRFM Range and Velocity Technique fundamentals
  • Digital and Radio Frequency (RF) subsystem design
  • EW exercise and test considerations
  • EP for mitigation of DRFM EA
Electronic warfare learner listening in classroom course

How You Will Benefit

  • Understand the theory of operation of DRFM devices.
  • Know the performance trade-offs of various DRFM architectures and component selections.
  • Select candidate electronic protection techniques to defeat a DRFM jammer.
  • Learn tactics techniques and procedures applicable to EW battle management.
  • Taught by Experts in the Field icon
    Taught by Experts in the Field
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The course schedule was well-structured with a mix of lectures, class discussions, and hands-on exercises led by knowledgeable and engaging instructors.

- Abe Kani


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