GROTH, EDWARD J.
Principal Electrical Engineer
EDUCATION:
University of Wichita, BA, Physics, 1942
University of Kansas, MA, Physics, 1944
Carnegie Institute of Technology, Graduate Studies
Studies in Abstract Algebra & Number Theory (Texts examples: Albert
& Dickson)
HONORS:
Sigma Xi (Graduate Scientific), Delta Epsilon
(Undergraduate Scientific) Invited Lecture at University of Michigan, 1968
& 1969
(Optimum Distortionless Combination Navigation Systems)
Referee for IEEE PG Info Theory, 1973, 1978, 1979 & for Information
& Control 1979 (all in field of Algebraic Coding)
EXPERIENCE:
1983 - Present: Motorola Inc., Government Electronics
Group. Tactical C3I
Section. Development of goal driven Expert Systems. Application of expert
system techniques to target identification problems in C3I
areas. Use of symbolic languages in constructing expert systems.
1977 - 1983: Systems and Technology Section.
Development of a new concept AJ techniques for high data rate, high AJ
protection data links. Development of an improved monopulse tracking
system. Development of a new data encoding decoding scheme with improved
error detection and unambiguous data dock recovery. Research into non
binary nonlinear sequence generation of controllable complexity. Wide
range of system and coding analytic problems. Development of new concepts
for acquiring two way secure data link. Code key distribution procedures.
Melding of AJ Security, error correction coding and random interleaving
for security against certain types of jamming threats. Mathematical
development of non-binary sequence generation in fields and rings.
Development of computationally secure non-binary sequence theory.
Development of techniques for relayed secure data links. Development of
IFF procedures to negate value of equipment capture. Development of source
encoding/decoding facilitating data clock recovery. Preliminary
development of new spread spectrum AJ techniques.
1965 - 1977: Motorola, GED, Manager of the Engineering Computer
Facility. Development and management of the GED computing facility
restricted to engineering use only. Selection of equipments and systems
software. Development of procedures for a facility with about 600 active
users. Managed operations, programming and systems analysis staffs.
RESUME --GROTH, EDWARD J. Page 2
1964 -1968: Motorola, GED, Manager of the Preliminary Design and
Analysis Group. Wide range of advanced systems problems and projects
handled from the analytic side -synthesis optimization, simulation. Small
missile active and passive guidance systems. High resolution radar data
processing (first digital system). First digital phase locked loops
-applied to LF and VLF navigation receivers. Development of
computationally secure binary sequence generation methods -aimed at AJ
secure systems. Ultra high precision navigation system for testing Air
Force inertial systems. Error correction code applications particularly
convolutional codes.
1958 -1964: GED, Project Director of Drone Navigation Guidance and
Control Project; system design, development and demonstration through
extensive field tests and measurements of a system for automatic precision
operation of long range Army surveillance drones. System employed AJ
secure LF radio links in optimum combination with onboard velocity
sensors.
1956 -1958: Motorola, GED, Technical Director of the Jupiter Radio
Inertial Guidance System, an AJ secure spread-spectrum, optimum
combination radio and inertial IRBM Guidance system (Army Ballistic
Missile Agency).
1954 -1956: Armament Division of Universal Match Corp., St. Louis:
Manager of Electronic Systems Development. Development of various military
electronic systems. Examples -Automatic photo reconnaissance, automatic
formation station keeping, small rocket control.
1948 -1954: Missouri Research Laboratories, St. Louis: Physicist.
System design of aircraft navigation systems -radar and dead reckoning.
System development and demonstration of new concept dual range navigation
system.
1946 -1948: Armament Division of Emerson Electronic
Co., St. Louis: Physicist. System design of Bomber defense automatic fire
control systems.
1945 -1946: Woods Hole Oceanographic Institute, Woods
Hole, Mass.: Physicist. Basic underwater sound propagation measurements.
1944 -1945: Manhattan Project, Tennessee-Eastman Corp., Oak Ridge,
Tenn.: Physicist. Instrument design and development for radiation survey
equipments.
MEMBERSHIPS:
IEEE, PGIT, AIP, APS
RESUME --GR0TH, EDWARD J. Page 3
PATENTS:
No. 3,150,372--Computing System
No. 3,351,859--Communication System Employing Multi-Path Rejection
Means
No. 3,701,018--Acquisition Method for Multiple Transmission Position
Location or Navigation System
No. 4,229,741--Two-Way Communication System and Method of
Synchronization No. 4,325,129--Non-Linear Logic Module
No. 4,425,666--Data Encoding/Decoding for Three Frequency FSK
Modulation
No. 4,494,238--Adaptive Redundant Spread Spectrum Anti-Interference
Systems. No. 4, 447, 90'7--Multiple Mixer Spread Spectrum Modulation
No. Pending --Improved Monopulse Tracking System
PUBLICATI0NS:
"Generation of Binary Sequences with Controllable
Complexity", IEEE Trans on Info Theory, Vol. 1T-17, No.3, May 1971.
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