Guarding GPS: Crafting the Ultimate Anti-Jam Testbed at Trial Petawawa 09-2

Industry: The paper presents the development of a GPS Anti-Jam Evaluation Testbed (GAJET)
during Trial Petawawa 09-2. GAJET is designed to enhance GPS receivers’ resistance to
jamming by utilizing Controlled Reception Pattern Antennas (CRPAs). This customizable
testbed allows for the investigation of various hardware and software components
independently to improve anti-jamming performance.

Challenge: The challenge addressed by GAJET is the increasing threat of GPS jamming, which
can disrupt GPS signals vital for military operations. Traditional GPS receivers are vulnerable to
jamming, necessitating the development of innovative solutions to mitigate this threat.

Extraordinary Aspects of the Paper: The paper highlights several noteworthy achievements:

1. Successful development of a prototype GAJET capable of spatially nulling up to two
simultaneous jammers using digital beamforming.

2. Demonstration of GAJET’s effectiveness in protecting GPS receivers against jamming in
various trial scenarios, including single and multiple jammer environments.

3. Validation of the digital beamforming algorithms using a GPS software receiver,
showcasing GAJET’s ability to provide accurate GPS position determination in jamming
environments.

4. Identification of areas for future improvement, such as optimizing RF front-end filters and
investigating factors influencing the effectiveness of beamforming algorithms, paving the
way for enhanced GPS anti-jamming capabilities in future iterations of GAJET.

Note: The quick summaries in this section focus on how GaGe Digitizer products have helped solve advanced problems.  Paraphrased using simplified terminology, the summaries are intended to make the achievements understandable to people from a variety of backgrounds.  Please use the provided link to source the original paper for technical clarity.