Digital signal processing.
Digital filter design and implementation.
Applications using m-sequences and similar sequences.
||Winter term 2002:
I received my BSEE in 1963, MSEE in 1965, and Ph.D. in 1983
all from the University of Michigan.
In 1962 I started working with Ted Birdsall. A
collaboration that continues through today. Most of my career
was involved in making acoustic propagation measurements in
the ocean. The early work was with the University of Miami as
part of the MIMI project. This work was focused on making
multipath measurement through the Straits of Florida. Use was
made of the Digital Equipment LINC-8 and PDP-8 minicomputers.
Jerry Cederquist and I developed a small operating system
using LINC tape (a "linear disk") modeled after the University
of Michigan's MTS terminal system. I was involved in the 1977
PANOIC experiment making long range propagation measurements
using a towed source. This work was performed using the
facilities of the ARPA Research Center at Moffett Field. In
1979 propagation multipath measurements were made towing an
acoustic source through the gulf stream as part of the FREDDEX
Starting in about 1978 my efforts started to shift to
working with Scripps and Woods Hole. The early work in this
period was with John Spiesberger. I was one of the Walter
Munk's seven dwarfs as part of the 1981 Ocean Tomography
Demonstration Experiment. I was responsible for designing the
shore station monitoring systems. In 1987 I worked with the
Naval Oceanography Office making towed source propagation
measurements in the North Atlantic. I participated in the 1988
and 1989 Greenland Sea cruises. A high point in my career was
in 1991 being part of Walter Munk's Heard Island Feasibility
Test (HIFT) project. This project successfully transmitted
acoustic signals from a ship located near Heard Island in the
extreme South Pacific to acoustic receivers located on both
coasts of the US. Following HIFT I was involved in setting up
the transmitters and shore sites for the Acoustic Thermometry
of Ocean Climate (ATOC) project. I worked closely with Jim
Mercer and Don Reddaway at the University of Washington's
Applied Physics Laboratory during this effort.
In 1997 I started working with Wayne Stark in the area of
communications. As part of this work I've investigated
Nordstrom-Robinson error correcting codes and designed and built
transmitter and receiver hardware for studying the
effectiveness of various forward error correcting codes in
real environments. This work continues.
I started teaching the DSP Design Laboratory course in
1999. The course was originally developed by Emad Ebbini and
Dave Anderson. The course consists of lecture and laboratory.
The laboratory is divided into a structured component and
project. The project counts as half of the student's grade.
Students work hard in this course and I've greatly enjoyed
teaching and working with them in the lab.