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ATI's Advanced Developments in Radar course
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Summary:
This three-day course provides students who already
have a basic understanding of radar a valuable extension
into the newer capabilities being continuously pursued in
our fast-moving field. While the course begins with a
quick review of fundamentals - this to establish a common
base for the instruction to follow - it is best suited for the
student who has taken one of the several basic radar
courses available.
In each topic, the method of instruction is first to
establish firmly the underlying principle and only then are
the current achievements and challenges addressed.
Treated are such topics as pulse compression in which
matched filter theory, resolution and broadband pulse
modulation are briefly reviewed, and then the latest code
optimality searches and hybrid coding and code-variable
pulse bursts are explored. Similarly, radar polarimetry is
reviewed in principle, then the application to image
processing (as in Synthetic Aperture Radar work) is
covered. Doppler processing and its application to SAR
imaging itself, then 3D SAR, the moving target problem
and other target signature work are also treated this way.
Space-Time Adaptive Processing (STAP) is introduced;
the resurgent interest in bistatic radar is discussed.
The most ample current literature (conferences and
journals) is used in this course, directing the student to
valuable material for further study. Instruction follows
the student notebook provided.
Instructor:
Bob Hill received his BS degree in 1957 (Iowa State
University) and the MS in 1967 (University of
Maryland), both in electrical engineering. After
spending a year in microwave work with an electronics
firm in Virginia, he was then a ground electronics officer
in the U.S. Air Force in the late 1950s and began his civil
service career with the U.S. Navy Department in
Washington D.C. in 1960, acquiring responsibilities for
the development of shipboard radar systems. He
managed the development of the phased array radar of
the Navy’s AEGIS system from the early 1960s through
its introduction to the fleet in 1975. Later in his career
he directed the development, acquisition and support of
all surveillance radars of the surface navy.
He retired from the federal service in 1988,
continuing his teaching of radar courses which had
begun in 1975. Mr. Hill is a Fellow of the IEEE, an IEEE
“distinguished lecturer”, a member of its Radar Systems
Panel and previously a member of its Aerospace and
Electronic Systems Society Board of Governors for
many years. He established in 1975 and chaired through
1990 the IEEE’s series of international radar
conferences and remains on the organizing committee of
these, and works with the several other nations
cooperating in that series. He has published numerous
conference papers, magazine articles and chapters of
books, and is the author of the radar, monopulse radar,
airborne radar and synthetic aperture radar articles in the
McGraw-Hill Encyclopedia of Science and Technology
and contributor for radar-related entries of their
technical dictionary.
Course Outline:
- Introduction and Background.
— The nature of radar and the physics involved.
— Concepts and tools required, briefly reviewed.
— Directions taken in radar development and the technological advances
permitting them.
— Further concepts and tools, more elaborate.
- Advanced Signal Processing.
— Review of developments in pulse compression (matched filter theory,
modulation techniques, the search for optimality) and in Doppler processing
(principles, "coherent" radar, vector processing, digital techniques);
establishing resolution in time (range) and in frequency (Doppler).
— Recent considerations in hybrid coding, shaping the ambiguity function.
— Target inference. Use of high range and high Doppler resolution: example
and experimental results.
- Synthetic Aperture Radar (SAR).
— Fundamentals reviewed, 2-D and 3-D SAR, example image.
— Developments in image enhancement. The dangerous point-scatterer
assumption. Autofocusing methods in SAR, ISAR imaging. The ground
moving target problem.
— Polarimetry and its application in SAR. Review of polarimetry theory.
Polarimetric filtering: the whitening filter, the matched filter. Polarimetric-dependent
phase unwrapping in 3D IFSAR.
— Image interpretation: target recognition processes reviewed.
- A "Radar Revolution" the Phased Array.
— The all-important antenna. General antenna theory, quickly reviewed.
Sidelobe concerns, suppression techniques. Ultra-low sidelobe design.
— The phased array. Electronic scanning, methods, typical componentry.
Behavior with scanning, the impedance problem and matching methods. The
problem of bandwidth; time-delay steering. Adaptive patterns, adaptivity
theory and practice. Digital beam forming. The "active" array.
— Phased array radar, system considerations.
- Advanced Data Processing.
— Detection in clutter, threshold control schemes, CFAR.
— Background analysis: clutter statistics, parameter estimation, clutter as a
compound process.
— Association, contacts to tracks.
— Track estimation, filtering, adaptivity, multiple hypothesis testing.
— Integration: multi-radar, multi-sensor data fusion, in both detection and
tracking, greater use of supplemental data, augmenting the radar processing.
- Other Topics.
— Bistatics, the resurgent interest. Review of the basics of bistatic radar,
challenges, early experiences. New opportunities: space; terrestrial.
Achievements reported.
— Space-Time Adaptive Processing (STAP), airborne radar emphasis.
— Ultra-wideband short pulse radar, various claims (well-founded and not); an
example UWB SAR system for good purpose.
— Concluding discussion, course review.
Tuition:
Tuition for this three-day course is $1390 per person at one of our scheduled public courses. Onsite pricing is available. Please call us at 410-956-8805 or send an email to ati@ATIcourses.com.
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