Faculty Advisor

Clancy, Edward A.

Faculty Advisor

Iannacchione, Germano S.

Center

LLP / Lincoln Labs Program

Abstract

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.

Publisher

Worcester Polytechnic Institute

Date Accepted

October 2012

Major

Electrical and Computer Engineering

Major

Physics

Project Type

Major Qualifying Project

Accessibility

Unrestricted

Advisor Department

Electrical and Computer Engineering

Advisor Department

Physics

Share

COinS