Program Book - Oceans'10 IEEE Sydney

non-destructive testing, nuclear science/ environmental
measurements, and applied ocean acoustics.
Dr. Carey is a Fellow of the Acoustical Society of America, a
Fellow of the IEEE Oceanic Engineering Society, a full member
of Sigma Xi, a member of the Connecticut Academy of Science
and Engineering, and also a member of the Cosmos Club. He is
the recipient of the IEEE-OES Distinguished Technical
Achievement Award, the IEEE-OES Distinguished Service Award
and an IEEE Millennium Medal. He recently received Pioneer of
Underwater Acoustics Silver Medal. He received the B.S.
degree in Mechanical Engineering, the M.S. degree in Physics,
and the Ph.D. degree in Nuclear Science from the Catholic
University of America.
T02: High Frequency Surface
Wave Radar
Dr Stuart Anderson
Time: 1300 – 1630
Room: Bayside 101
HF surface wave radars exploit the
electromagnetic ground wave mode of
propagation to illuminate the ocean
surface at ‗over-the-horizon‘ ranges, up
to several hundred kilometres. In most
cases they are deployed at coastal sites within ~ 100 metres of
the shoreline. Echoes provide information on waves and
currents, as well as the presence of ships and other discrete
features.
Existing HFSWR systems are clustered into two main categories
: (i) low power, reasonably compact remote sensing systems
designed to monitor ocean currents and measure wave spectra,
and (ii) high power military systems with greater sensitivity and
extended range coverage, employed for detection and tracking
of ships, smaller ocean-going vessels and low-flying aircraft
which fall below the horizon of microwave ‗line-of-sight‘ radar
systems. In addition, mention should be made of ship-borne
HFSWR systems, though these remain the subject of research
and development rather than being fitted to operational
platforms.
This tutorial sets out to describe the principle characteristics of
HFSWR systems, both the low power remote sensing systems
and the military surveillance radars. The main subsystems of
such radars are described, emphasising the factors which
impact on HFSWR design. The electromagnetics of ground wave
propagation and scattering is treated in some depth. A fairly
detailed account of the geometry and dynamics of the ocean
surface is provided, since it is effectively this surface that
constitutes the ‗channel‘ connecting radar to target, as well as
serving as the target of interest in the case of remote sensing.
The issue of radar siting is treated in detail, as in practice this
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