Understanding Synthetic Aperture Radar Images
Written for SAR system designers and remote sensing specialists, this practical reference shows you how to produce higher quality SAR images using data-driven algorithms, and how to apply powerful new techniques to measure and analyze SAR image content.
The book describes how SAR imagery is formed, how SAR processing affects image properties, and gives you specific guidance in selecting and applying today's most sophisticated analytical techniques. By helping you to quickly assess which components of an SAR image should be measured, the book enables you to devote more time and energy to the real task of image interpretation and analysis.
Now includes a CD-ROM featuring a 2-month free license to InfoPACK Version 1.2! InfoPACK, developed by Chris Oliver, is a SAR image interpretation software suite which exploits and extends the principles described in the book, enabling the user to run many of the algorithms. It features an easy to use GUI, image viewer and versatile scripting language, making applications development easy and fast. Particular aspects of interest include segmentation, classification (supervised and unsupervised), speckle reduction and a host of techniques for data fusion. Routines within InfoPACK include:
* Intensity Segmentation (single image; multitemporal, multipolarization)
* Speckle Reduction
* Texture Segmentation
* Segmentation Postprocessing
* Edge Detection
* Point Target Detection
* Large Area Change Detection
Also included are a variety of low-level filters and functions for image manipulation and arithmetic operations.
Key Features of the Book
* Filled with real-world examples from various SAR systems, the book reveals sophisticated, proven techniques for:
* SAR filtering, parameter estimation, image reconstruction, segmentation, and classification
* Evaluating measurement algorithms to help make better algorithm selections
* Applying powerful speckle removal methods to airborne and spaceborne SAR data
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Imaging Topological Radar Technology as
a Non-Metric High-Intensity Compactified Matrix of WaveletsInfinite-dimensional vector spaces as applied to elements of military/non-military radar signals – if accorded to coordinate-free virtuals of manifold state space systems— would have the benefit of turning the symbolic mathematics of radar-explaining literature into either topological/differential geometry language or “infinitesimal” proof-making [rather than the generally normal calculus mannerism of theorems, lemmas, and corollaries]. Accordingly, much greater ease of inherent consistency arises, especially in view of cruder mathematical abstraction(s) detailing the spatial formulae needed to evaluate such coordinate-free treatment of the available geometry: that of non-Euclidean phase space transition on the side of the virtual topological/differential geometry with tensors as graphics of Curvilinear coordinates. Thence, Cartesian coordinates give way to their curvilinear counterparts where orthogonality does possess contravariant differential elements in addition to traditional covariant basis.
It is for this reason that the polarity of fictitious forces (in general curvilinear coordinates), enact the straight beam tangents both in circles and in semicircles. The local bases of affine homogeneous coordinates, though turned, go on to symbolize the multi-dimensional coordinates, disregarding the facticity that
covariant and contravariant bases would give birth to wavelets trough out the Hausdorf space.
We will explore valuable insights that phase transitions provide in three setting. First, they allow us to understand the limitations of certain classes of sampling algorithms, potentially leading to much faster alternative approaches. Second, they reveal statistical properties of stationary distributions, giving insight into various interacting models, such as, continuous bijection of a compact space onto a T2 space, compact sets closed in Hausdorff spaces, cofinite topology, and the family of all open affine neighborhoods. Third, they predict emergent phenomena that can be harnessed for the design of distributed algorithms for certain asynchronous radar models of programmable active permutations. We will see how these three research threads are closely interrelated and inform one another when it comes to signaling radar matrix.
One of the fundamental problems faced both by science in general and by radar industry is that of making sense of large and complex data sets. To approach this problem, we need new organizing principles and modeling methodologies. One such approach is through topology, the mathematical study of shape. The shape of the data, suitably defined, is an important component of exploratory data analysis. In this talk, we will discuss the topological approach, with numerous examples, and consider some questions about how it will develop as mathematics.
Geospatial big data refers to spatial data sets exceeding capacity of current computing systems. A significant portion of big data is actually geospatial data, and the size of such data is growing rapidly at least by 20% every year. We introduce new emerging platforms for sharing the collected geospatial big data via mobile devices reflected by radar signals. The researchers in academia and industry have spent a lot of efforts to improve the value of geospatial big data as well as take advantage of its value. However, they have ever scarcely thought of bringing in the differential topology.
The way a proof is presented can raise or lower the entry barrier required to understand it. As both students and researchers alike want to learn new
mathematics, proof presentation is thus important both in teaching and research contexts. In this upshot, we will consider different ways of presenting the same geometric proof to illustrate more precisely how presentation can make it easier or more difficult to understand in cases of application of topology to radar systems.
Geometric Algebra if combined with differential
Principles of SAR Image Formation
Image Defects and Their Correction
Fundamental Properties of SAR Images
RCS Reconstruction Filters
RCS Classification and Segmentation
Information in Multichannel SAR Data
Analysis Techniques for Multidimensional
Classification of SAR Imagery
Current Status and Future Prospects
About the Authors