Wideband direction finding using a photonic robust symmetrical number system technique

Thomas W. Tedesso; James Calusdian; Carsten Sewing; Phillip E. Pace

doi:10.1117/1.OE.53.11.114109

21 November 2014 Wideband direction finding using a photonic robust symmetrical number system technique

Thomas W. Tedesso, James Calusdian, Carsten Sewing, Phillip E. Pace

Author Affiliations +

Optical Engineering, Vol. 53, Issue 11, 114109 (November 2014). https://doi.org/10.1117/1.OE.53.11.114109

Abstract

Dual electrode Mach–Zehnder modulators (DE-MZMs) are used to conduct phase detection for direct wideband direction finding (DF) of microwave signals. It is demonstrated theoretically and through simulation and experimentation that the normalized magnitude of the output signal phase detector circuit is equal to |sin(ψ/2)|, where ψ is the phase difference between the plane waves arriving at the reference and measurement antennas of a linear DF array. A four-element wideband photonic DF system with robust symmetrical number system preprocessing is presented. Simulation and experimental testing results are provided to demonstrate the theoretical concept. The results demonstrate a direct DF receiver using DE-MZMs that achieves fine angular resolution using a much smaller array size than is typically required for linear arrays employing super-resolution signal processing techniques.

Citation Download Citation

Thomas W. Tedesso, James Calusdian, Carsten Sewing, and Phillip E. Pace "Wideband direction finding using a photonic robust symmetrical number system technique," Optical Engineering 53(11), 114109 (21 November 2014). https://doi.org/10.1117/1.OE.53.11.114109

Published: 21 November 2014

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available