Page 82 - Fundamentals of Radar Signal Processing

1.6.2 Basic Radar Signal Processing
It is this author’s opinion that there are a number of excellent books about radar
systems in general, including coverage of components and system designs, and
several on advanced radar signal processing topics, especially in the area of
synthetic aperture imaging. There have been few books that address the middle
ground of basic radar signal processing, such as pulse compression, Doppler

filtering, and CFAR detection. Such books are needed to provide greater
quantitative depth than is available in the radar systems books without
restricting themselves to in-depth coverage of a single advanced application
area, and this text aims to fill that gap. Nonetheless, there are a few texts that fit
somewhat into this middle area. Nathanson (1991) wrote a classic book, now in
its second edition, that covers radar systems in general but in fact concentrates
on signal processing issues, especially RCS and clutter modeling, waveforms,

MTI, and detection. Probably the closest text in intent to this one is by Levanon
(1988), which provides excellent analyses of many basic signal processing
functions. The new text by Levanon and Mozeson (2004) addresses the
widening variety of radar waveforms in detail. A recent text by Sullivan (2000)
is interesting especially for its introductory coverage of both SAR and space-
time adaptive processing (STAP), thus providing a bridge between basic signal

processing and more advanced texts specializing in SAR and STAP.

1.6.3 Advanced Radar Signal Processing
Two very active areas of advanced radar signal processing research are SAR
imaging and STAP. SAR research extends back to 1951, but only in the 1990s
did open literature textbooks begin to appear in the market. There are now many
good textbooks on SAR. The first comprehensive text was by Curlander and
McDonough (1991). Based on experience gained at the NASA Jet Propulsion

Laboratory, it emphasizes space-based SAR and includes a strong component of
scattering theory as well. Cumming and Wong (2005) is a newer text that also
emphasizes spaced-based SAR. The spotlight SAR mode received considerable
development in the 1990s, and two major groups published competing texts in
the mid-1990s. Carrara, Goodman, and Majewski (1995) represented the work
of the group at the Environmental Research Institute of Michigan (ERIM, now a

part of General Dynamics, Inc.); Jakowatz, Jr., et al. (1996) represented the
work of a group at Sandia National Laboratories, a unit of the U.S. Department
of Energy. Franceschetti and Lanari (1999) provide a compact, unified treatment
of both major modes of SAR imaging, namely stripmap and spotlight. The book
by Soumekh (1999) is the most complete academic reference on synthetic
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aperture imaging and includes a number of MATLAB simulation resources.
STAP, one of the most active radar signal processing research areas, began

in earnest in 1973 and is correspondingly less mature than SAR processing.
Klemm (1998) wrote the first significant open literature text on the subject. Just
as with the Curlander and McDonough book in the SAR community, this book