This paper describes the development of a phase interferometry direction finding system for an airborne platform developed for MIT Lincoln Laboratory. A phase interferometer uses the phase difference to determine the Angle of Arrival (AoA) of a received signal. The team utilized three antennas to resolve phase ambiguities and determined the AoA for received electromagnetic signals in the X band to within 0.1 degrees in simulations including realistic noise models for a 170 degree field of view. A prototype was implemented using an FPGA-based board for data acquisition connected via USB to a PC for analysis, which connected to another PC via a TCP connection for display. The team developed a graphical user interface for the system to display results to a system operator.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Jackson, Shane William
• Guerin, Daniel R.

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-101012-211424

Advisor

• Iannacchione, Germano S.
• Clancy, Edward A.

Year

• 2012

Center

• MIT Lincoln Laboratory-Lexington, Massachusetts Project Center - MQP

Sponsor

• MIT Lincoln Labs

Date created

• 2012-10-10

Resource type

• Major Qualifying Project

Major

• Electrical & Computer Engineering
• Physics

Rights statement

• In Copyright

License

• All rights reserved