Dr. George T. Zunich
President, Zunicalc, Inc.
Consulting for analysis and simulation of communication and radar systems, and also design, development, and implementation of digital signal processing algorithms.
Thirty-four years of expertise in the analysis and development of signal processing algorithms, including adaptive processing for airborne radar and communications systems. Ten years performing algorithm development, system analysis, and simulation work contracting to Lockheed-Martin on the MUOS system, a geosynchronous satellite military communication system. Tasks included capacity analysis and simulation, developing algorithms for use within the MUOS performance model (MPM), MPM debugging and validation testing, MUOS uplink beamforming analysis and simulation, power control algorithm development and simulation.
From 1995 to 2005: member of technical staff at ATK -
Mission Research, Monterey, CA.
Developed and analyzed Space-Time Adaptive Processing (STAP) algorithms
for mitigation of Terrain Scattered Interference (TSI) in airborne surveillance
radars. Principle Investigator for a
contract from Lincoln Laboratory to implement and analyze STAP algorithms on
advanced TSI threats with radar data obtained from DARPA's MountainTop UHF
radar program. Worked on a DARPA SBIR
contract to investigate the hybrid processing structure of frequency-shift
(FRESH) filtering coupled with STAP to perform co-channel signal separation of
cellular communication signals by exploiting cyclo-stationary structure in the
signals. The technique is called
FRESH-STAP filtering. Also performed
experiment planning and data analysis on the Ballistic Missile Early Warning
Radars (BMEWS) at
From 1991 to 1995:
Chief Engineer at Information Systems Laboratories, Inc. in
Received Ph.D. working with Prof. Lloyd J. Griffiths at the University of Southern California in 1991. Studied sensitivity issues dealing with adaptive array processing in the area of signal copy and direction finding. Developed robust constraints to prevent SNR loss under small phase perturbations in adaptive systems. Applied adaptive techniques to RF arrays for over-the-horizon radar data generated at Rome Labs including Eigenvector-based constraint methods for nulling and preferred steering.
From 1981 to 1985:
Member of Technical Staff at AT&T,
including gate array design.
Consultant May 2005 - Present
ATK, Mission Research April 1995 – May 2005
Information Systems Laboratories October 1991 - April 1995
Ph.D. Electrical Engineering,
M.S. Electrical Engineering,
B.S. Electrical Engineering,
Publications of Dr. Zunich:
“Statistical Capacity and Link Availability Verification for MUOS,” with Norm Butts and John Oetting, MILCOM, Baltimore, MD, 7-10 November 2011.
“Mitigation of the MountainTop Doublet TSI,” Proc. of the Adaptive Sensor Array Processing (ASAP) Workshop, Lincoln Laboratory, Lexington, MA, 13-15 March 1996.
“Mitigation of the Mountain Top Doublet
Data,” with C. S. Butler and D. O. Walsh. Proc. of the 3rd ARPA MountainTop Hot
Clutter Technical Interchange Meeting,
“Additional Constraints in the Maximum
Likelihood Method to Protect Against Element Perturbation,” Asilomar Conference
on Signals, Systems, and Computers,
“Modified MUSIC in the Presence of
Random Phase Errors,” Proc. of the Int'l. Conference on Acoustics, Speech, and
“A Robust Method in Adaptive Array
Processing for Random Phase Errors,” with L. J. Griffiths, Proc. of the Int'l.
Conference on Acoustics, Speech, and Signal Processing,
“A Robust Method for Adaptive Arrays,” with L. J. Griffiths, Asilomar Conference on Signals, Systems, and Computers, Monterey, CA, November 1990.