Inverse Methods in Electromagnetic Imaging: Part 2

ISBN-13: 9789401088282 / Angielski / Miękka / 2013 / 1347 str.

Wolfgang-M. Boerner;Hans Brand;Leonard A. Cram

Opis

In recent years, there has been an increased interest in the use of polarization effects for radar and electromagnetic imaging problems (References 1, 2, and 3). The problem of electro- magnetic imaging can be divided into the following areas: (1) Propagation of the Stokes' vector from the transmitter to the target region through various atmospheric conditions (rain, dust, fog, clouds, turbulence, etc.). (2) Scattering of the Stokes' vector from the object. (3) Scattering of the Stokes' vector from the rough surface, terrain, and the volume scattering. (4) Propagation of the Stokes' vector from the target region to the receiver. (5) The characteristics of the receiver relating the Stokes' vector to the output. The propagation characteristics of the Stokes' vector through various media can be described by the equation of transfer. Even though the scalar equation of transfer has been studied extensively in the past, the vector equation of transfer has not received as much attention. In recent years, however, a need for further study of the vector radiative transfer theory has become increasingly evident and several important studies have been reported. This paper presents a general formulation of the vector theory of radiative transfer under general anisotropic scattering conditions. Some useful solutions are also presented 4 8 for several practical situations. - 2. GENERAL FORMULATION OF VECTOR RADIATIVE TRANSFER THEORY Let us consider the plane-parallel problem Shovlll in Figure 1.

Spis treści

Table of Contents (Part 2).- TOPIC III (Papers are cross-referenced with the Final Technical Program (Outline. Given are session and sequence of presentation, i.e., OS.3).- III.10 (SR.4) Study of Two Scatterer Interference with a Polarimetric FM/CW Radar.- III.11 (SP.5) Polarization Dependence in Angle Tracking Systems.- III.12 (SS.4) Interpretation of High Resolution Polarimetric Radar Target Down-Range Signatures Using Kennaugh’s and Huynen’s Target Characteristic Operator Theories.- III.13 (MM.5) Demands on Polarization Purity in the Measurement and Imaging of Distributed Clutter.- III.14 (SP.2) Polarization Vector Signal Processing for Radar Clutter Suppression.- Topic IV — Image Quality and Image Resolution in Remote Sensing and Surveillance.- IV.1 (RS.1) The Radiative Transfer Approach in Electromagnetic Imaging.- IV.2 (RP.4) Towards a Theory of Perception for Radar Targets with Application to the Analysis of Their Data Base Structures and Presentations.- IV.3 (SI.4) Radar Imagery.- IV.4 (SI.1) Inverse Methods Applied to Microwave Target Imaging.- IV.5 (SR.1) (SP.4) Optimum Detection Techniques in Relation to Shape and Size of Objects, Motion Pattern and Material Composition.- IV.6 (RS.3) Inverse Methods for Ocean Wave Imaging By Sar.- IV.7 (RS.2) Inverse Methods in Rough-Surface Scattering.- IV.8 (SI.2) On the Optimum Detection of Surface Chemical Compounds.- IV.9 (SI.3) Inversion Problems in Sar Imaging.- IV.10 (SI.5) Inverse Methods in Radio Glaciology.- IV.11 (MI.1) Fast Millimeter Wave Imaging.- IV.12 (IM.2) Electromagnetic Low Frequency Imaging.- IV.13 (MI.5) Electromagnetic Imaging of Dielectric Targets.- IV.14 (MI.3) A Four-Channel Millimeter-Wave On-Line Imaging Method.- TOPIC V — Holographic and Tomographic Imaging and Related Phase Problems.- V.1 (0I.1) The Holographic Principle.- V.2 (PT.1) Review of Tomographic Imaging Methods Applied to Medical Imaging.- V.3 (MM.1) Inverse Methods in Microwave Metrology.- V.4 (MI.2) Holographic & Tomographic Imaging with Microwaves and Ultrasound.- V.5 (PT.4) Diffraction Tomography.- V.6 (PT.3) Algorithms and Error Analysis for Diffraction Tomo-Graphy Using the Born and Rytov Approximations.- V.7 (PT.5) Extension of Scalar to Vector Propagation Tomography — A Computer Numerical Approach.- V.8 (OI.4) Image Processing: Analysis Beyond Matched Filtering.- V.9 (OI.3) Modifications of the Gerchberg Method Applied to Electromagnetic Imaging.- V.10 (MI.4) Phase Comparison Monopulse Side Scan Radar.- V.11 (MM.4) Diagnostic Measurements and Analysis of Wave Mechanisms in Radomes.- V.12 (OI.2) Synthesis & Detection of Electromagnetic Authenticity Features.- V.13 (SR.5) Improvement of Image Fidelity in Microwave Imaging Through Diversity Techniques.- V.14 (SP.6*) Far-Field to Near-Field Transforms in Spherical Coordinates.- TOPIC VI — Working Discussion Group Reports.- VI Final Reports of Working Discussion Groups Background.- VI.1 Mathematical Inversion Methods and Transient Techniques (W-A).- VI.2 Numerical Instabilities in Electromagnetic Inverse Problems (W-B).- VI.3 Polarization Utilization in High Resolution Imaging (W-C).- VI.4 Definition of Image Quality and Image Resolution in Remote Sensing and Surveillance (W-D).- VI.5 Holographic and Tomographic Imaging and Related Phase Problems (W-E).- VI.6 Enhancement of Interaction Between Active R&DLabs within Nato-Member Countries on the Subject of Electromagnetic Imaging (W-F).- VI.7 Overall Final Report.- Final Technical Program Outline.- Keyword Index.- Author Index.- List of Invitees.