Dr. George T. Zunich

President, Zunicalc, Inc.

728 Laurel Ave.

Pacific Grove, CA   93950





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 Thule, Greenland and Fylingdales, England to extract ionospheric information and analyze the radars’ performance in the presence of ionospheric disturbances.


From 1991 to 1995:  Chief Engineer at Information Systems Laboratories, Inc. in Vienna, VA.  Researched STAP algorithms, direction-finding algorithms for SIGINT, adaptive radar calibration techniques, phase-robust algorithms for adaptive processing and high-resolution direction-finding, and detection and discrimination algorithms for foliage penetration (FOPEN) synthetic aperture radar (SAR) data-processing of mobile structures in deep-hide.


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, Bell Laboratories in Whippany, NJ.  Performed digital design and analysis, software simulations, and architectural studies for a large Navy-sponsored digital signal processor,

including gate array design.



Employment History: 


Consultant                                           May 2005 - Present

ATK, Mission Research                      April 1995 – May 2005

                        Information Systems Laboratories       October 1991 - April 1995

                        University of Southern California       Sept. 1985 - October 1991

                        AT&T, Bell Laboratories                   June 1981 - May 1985




                        Ph.D.   Electrical Engineering, University of Southern California,     1991

                        M.S.    Electrical Engineering, University of California, Berkeley,    1982

B.S.     Electrical Engineering, University of Illinois, Champaign,     1981


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, Rome Laboratory, Griffiss AFB, NY, 23-24 August 1995.


“Additional Constraints in the Maximum Likelihood Method to Protect Against Element Perturbation,” Asilomar Conference on Signals, Systems, and Computers, Monterey, CA, November 1993.


“Modified MUSIC in the Presence of Random Phase Errors,” Proc. of the Int'l. Conference on Acoustics, Speech, and Signal Processing, Minneapolis, MN, April 1993.


“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, Toronto, Canada, pp. 1357-1360, May 1991.


“A Robust Method for Adaptive Arrays,” with L. J. Griffiths, Asilomar Conference on Signals, Systems, and Computers, Monterey, CA, November 1990.