Accession Number:

AD1040116

Title:

Development of a Software-Defined Radar

Descriptive Note:

Technical Report,29 May 2017,11 Aug 2017

Corporate Author:

US Army Research Laboratory, Sensors and Electron Devices Directorate Adelphi United States

Personal Author(s):

• Kirk, Benjamin
• Owen,Jonathan
• Gallagher,Kyle
• Martone,Anthony
• Sherbondy,Kelly
• Narayanan,Ram
• Blunt,Shannon

Report Date:

2017-10-01

Pagination or Media Count:

44.0

Abstract:

In wartime environments, radio frequency interference RFI is created by communication devices, jammers, and other electronic sources. The RFI spectrum is assumed to be nonstationary over time, which creates potential to disrupt desired radar operation. The cognitive radar system discussed herein mitigates the effects of RFI by sensing and adapting the transmitted waveform to the widest available unoccupied instantaneous bandwidth in real time. Consequently, the radar range resolution and target detection are ameliorated. Results of a prototype cognitive radar implemented on an Ettus X310 software-defined radio are presented.

Descriptors:

• software defined radios
• frequency bands
• waveforms
• field programmable gate arrays
• radio frequency
• waveform generators
• coherent radar
• signal generators
• radio equipment
• bandwidth
• delay lines
• transceivers
• user interface
• RADIO FREQUENCY INTERFERENCE

Subject Categories:

• Active and Passive Radar Detection and Equipment
• Radio Communications
• Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE