The Wireless Security Threat to the Warfighter

In order to operate with maximum effectiveness in the combat zone, the warfighter depends on fast, clear and uninterrupted access to high-quality wireless signals for voice communications as well as command, control, targeting, and navigation information.

However, in highly contested and congested environments, intentional and unintentional interference can impact the wireless signal quality which affects the warfighter's effectiveness and endangers the safety of blue forces in the area.

Regardless of the origin of the interference, it is essential that tactical wireless systems have interference mitigation (IM) technology in order to maintain the high quality of wireless service that the warfighter demands.

Introducing The Magic Filter

Adaptive Dynamics Inc. (ADI) has been developing interference mitigation (IM) technology since 2003 and has developed a revolutionary digital signal processing (DSP) technology called ‘Multiple Adaptive Generalized Interference Cancellation’ (MAGIC) which does not suffer from the disadvantages of the other traditional IM technologies and whose performance has been independently verified in government labs with operational signal and interference waveforms.

  • Automatically removes very high levels of interference from the desired signal.
  • Does not distort the desired signal or reduce the wireless receiver sensitivity.
  • Does not require any signal or interference reference or training.
  • Addresses very challenging, highly dynamic interference from multiple sources.
  • Operates over a very wide range of wireless signal applications and interference environments.
  • Can be easily implemented as an external applique, a COTS (Commercial Off-The Shelf) card, a custom PCB (Printed Circuit Board) or as encrypted code within an existing onboard processor or FPGA (Field Programmable Gate Array).


Conventional interference mitigation techniques have significant limitations for tracking dynamically changing RF environments. Our mission is to develop innovative nonlinear signal processing techniques that deliver robust tactical communications and signals intelligence capabilities to the warfighter, in the highly dynamic environments in which they must operate.


ADI specializes in developing communications hardware and software that provide unique tactical capabilities for challenging RF environments. Our scientists and engineers have been recognized for more than 35 years as leaders in the development of innovative adaptive signal processing techniques for sonar, undersea surveillance, GPS and both military and commercial wireless communication systems.


Key values for Adaptive Dynamics include excellence in product design, delivery and customer support; innovation and vision in the development of products that support future needs; and strategic teaming with government and industrial partners to solve operationally-significant problems.


Adaptive Dynamics has a team of dedicated professionals with experience in signal and image processing, communications systems, algorithm design, systems engineering, digital hardware design, real-time and embedded device programming, software-defined radio systems, simulation and modeling, Verilog/VHDL implementation, synthesis and verification, board-level design, and systems integration.

SBIR Awards

Phase One

20168.4.4L-Band Radio Frequency Interference FilteringDr. Will CooperIn Phase 1, Adaptive Dynamics Inc. propose to do a PHY layer MATLAB simulation and optimization of the IMPS Wideband MAGIC Interference Mitigation (IM) filter for NOAA. This will demonstrate the feasibility and performance of the IMPS Wideband MAGIC IM filter algorithm in effectively identifying and separating out unwanted interference from the desired signal of interest (SOI), without a priori knowledge of the interference or SOI.
2014N131-029Magic Filter Anti-Jamming Capability for RT-1944/U RadioDr. Brandon ZeidlerIn the Phase I Base period, Anti-Jam (A/J) enhancements exceeding 40 dB were demonstrated with operational RT-1944/U radios. An advanced Low Rate Initial Production (LRIP) prototype currently being completed for UHF SATCOM applications will be modified to provide an initial TRL 6 prototype for protecting the RT-1944/U radios.
2014A14-028Interference Cancellation for Mobile Force Protection JammingDr. Brandon ZeidlerAdaptive Dynamics Inc. will collaborate with established industry partners to develop a low SWaP MAGIC filter appliqué to seamlessly integrate with existing AN/PRC-154 radios, and ensure reliable communications even in challenging electromagnetic environments.
2013A13-041Signal Recognition and Management Band Pass Filter (BPF) DevicesDr. Brandon ZeidlerAdaptive Dynamics, Inc. has developed the MAGIC (Multiple Adaptive Generalized Interference Cancellation) Filter, a revolutionary interference mitigation technology that offers specific advantages for both in band signal separation and out of band signal rejection. The Phase I project will conclude with a live demonstration using COTS hardware and our UHF SATCOM prototype.
2011N112-170Wideband Radio Local Interference Optimization TechniquesDr. Brandon ZeidlerA detailed plan is provided to modify and implement the existing narrowband version of the MAGIC filter and evaluate the performance of a new wideband version for mitigation of the various types of dynamic interference, both narrowband and wideband, that could degrade the performance of the MUOS 5MHz UHF SATCOM system.
2007N07-103Submarine UHF SATCOM (25 kHz CPM) Narrowband Interference and Multipath Mitigation with Nonlinear Adaptive FilteringDr. Brandon ZeidlerIn Phase I, we will provide a complete software receiver capable of signal acquisition and subsequent tracking of frequency, phase, timing, and the Reed-Solomon coding and Viterbi detection functions specified in MIL-STD-188-181B.

Phase Two

2016A14-028Interference Cancellation for Mobile Force Protection JammingDr. Brandon ZeidlerThe MFP Phase II IM appliqué circuit will utilize an SDR consisting of a high resolution, zero IF transceiver (e.g. Analog Devices 9361, Lime Micro Systems 7002, etc.) coupled with a low power, high performance FPGA (e.g. Xilinx Zynq 7035, Altera Cyclone V, etc.) to separate the interference from the desired signal.
2013N131-029MAGIC Filter Anti-Jamming Capability for RT-1944/U RadioDr. Brandon ZeidlerDuring the Phase II option, a new LRIP MAGIC filter prototype that fits within a spare card slot of the RT-1944/U chassis will be produced. The will be designed in accordance with all identified transition requirements, in order to expedite acquisition for operational use.
2013Wideband Radio Local Interference Optimization TechniquesDr. Brandon ZeidlerAdaptive Dynamics will develop enhancements to the MAGIC filter applicable to the Soldier Radio Waveform (SRW), optimize the algorithm as a VHDL core for insertion into the baseband processing chain of an ITT Exelis Soldier Radio-Rifleman (SR-R), and perform field testing in a tactical electro-magnetic interference (EMI) environment.
2009N07-103Submarine UHF SATCOM (25 kHz CPM) Narrowband Interference and Multipath Mitigation with Nonlinear Adaptive FilteringDr. Brandon ZeidlerWe propose to further develop and implement innovative nonlinear adaptive filtering techniques to simultaneously mitigate the effects of narrowband interference and multipath distortion for the 25 kHz Continuous Phase Modulation (CPM) MIL-STD-188-181B waveform for submarine communications and other DoD applications.