Accession Number:

ADA632379

Title:

A New High-Resolution Direction Finding Architecture Using Photonics and Neural Network Signal Processing for Miniature Air Vehicle Applications

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA CENTER FOR JOINT SERVICES ELECTRONIC WARFARE

Personal Author(s):

Report Date:

2015-09-01

Pagination or Media Count:

155.0

Abstract:

This paper investigates the design of an interferometric direction finding receiver using photonic components for signal mixing and a multi-layer perceptron for data analysis. The complete system was tested with a 2.4 GHz continuous signal in an anechoic chamber. Test results showed that the compact antenna and receiver design was capable of measuring direction of arrival with 1 deg resolution over a 180 deg field of view while keeping mean error below 0.5 deg. It was also demonstrated that the design is insensitive to phase alignment of receiver channels, thus simplifying future receiver design. Improvements were recommended for a design theoretically capable of providing 0.25 deg angle resolution.

Subject Categories:

  • Electrical and Electronic Equipment
  • Target Direction, Range and Position Finding
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE