Direct and inverse methods in radar polarimetry : [proceedings of the NATO Advanced Research Workshop on Direct and Inverse Methods in Radar Polarimetry, Bad Windsheim, Franconia, Germany, September 18-24, 1988]. 2 (1992)

This foreword deals exclusively with the planning, organization, and execution of the Workshop's scientific as well as cultural programs. It is opened with a synopsis on how the global political changes that occurred immediately after the Workshop caused the ~elay in producing the proceedings, followed by a brief exposition on need, timeliness, and importance of this second ARW in the field of electromagnetic imaging, radar remote sensing, and target versus clutter di~rimination; and an outline of the objectives. An informal discussion about some of the organizational details, a retrospective summary of events, and a preview of the third workshop, planned for 1993 September 19-25, is intended to recapture the spirit of this second NATO Advanced Research Workshop (1988 September 18-24), and will reveal how successful it was in compar­ ison to the first of 1983 September 18-24, how its accomplishments may be appreciated and why a third and last workshop was requested by its participants to take place during 1993 September 19-25. Front Matter....Pages i-xxxiv Historical Development of Radar Polarimetry, Incentives for This Workshop, and Overview of Contributions to These Proceedings....Pages 1-32 Polarization in Nature....Pages 33-44 Review of Past and Current Research in the USSR on the Fundamentals and Basics of Radar Polarimetry and High Resolution Radar Imaging....Pages 45-59 Applying the Polarization Selection Techniques to Meteorologic and Oceanographic Radar Remote Sensing (Review of Soviet Studies)....Pages 61-83 Meteorologic Radar Polarimetry in North America During 1950–1991....Pages 85-97 Comparison of Fundamental Approaches to Radar Polarimetry....Pages 99-116 Definitions of Polarization in Radar....Pages 117-153 Basic Concepts of Radar Polarimetry....Pages 155-245 An Alternative Approach to Foundations of Radar Polarimetry....Pages 247-266 Uniqueness of Target Decomposition Theorems in Radar Polarimetry....Pages 267-296 Determination of the Characteristic Polarization States of the Radar Target Scattering Matrix [S(AB)] for the Coherent, Monostatic and Reciprocal Propagation Space Using the Polarization Ratio ρ Transformation Formulation....Pages 297-349 Comments on Target Decomposition Theorems....Pages 351-385 T-Pulse for Exciting Single Modes of Radar Targets....Pages 387-399 SEM and EEM Scattering Matrices, and Time-Domain Scatterer Polarization in the Scattering Residue Matrix....Pages 401-425 Transient Polarization....Pages 427-486 Physical Optics Polarization Correction of Backscattering From Conducting Smooth Surfaces....Pages 487-501 Polarization Correction and Extension of the Kennaugh-Cosgriff Target-Ramp Response Equation to the Bi-Static Case and Applications to Electromagnetic Inverse Scattering....Pages 503-516 Interpretation of the Physical Optics Approximation in the Time Domain for the Bistatic Case....Pages 517-535 Inverse GTD via Polarimetric Linear Prediction....Pages 537-544 A Validation Analysis of Huynen’s Target-Descriptor Interpretations of the Mueller Matrix Elements in Polarimetric Radar Returns Using Kennaugh’s Physical Optics Impulse Response Formulation....Pages 545-554 Theory and Measurement of Surface-Torsion....Pages 555-579 The Solution of Scattering and Radiation Problems for Complex Configurations Based on 3-D Grid and Patch Models....Pages 581-623 Properties of Scattering Matrix Statistics: Improved Polarization Detection and Discrimination Algorithms for Pol-Rad (Target Radio-Location) Applications....Pages 625-674 Optimal Polarizations for Reciprocal Random Targets....Pages 675-691 A Polarimetric Model for Multi-Path Imaging/Identification Analysis Using Poly-Static (Bi-Static Plus Mono-Static) Scattering Matrix Data....Pages 693-706 Basic Polarimetric Measurements on Monostatic or Bistatic Radar Images....Pages 707-738 Measurement and Analysis in Radar Polarimetry....Pages 739-772 A Complete Error Model for Polarimetric RCS- and Antenna Measurements....Pages 773-791 An Efficient Calibration Scheme for the Four-Detector Photopolarimeter Using a Rotating Quarter-Wave Retarder....Pages 793-807 Polarization State Measurements Derived from a General Six-Port Analyzer: A Theoretical and Experimental Approach....Pages 809-818 Understanding Reciprocity in Radar Polarimetry....Pages 819-827 Assessment of Calibration Procedures for Polarimetric Radars....Pages 829-844 Polarimetric Target and Clutter Scattering Matrix Measurements at cm to sub-mm Wavelengths....Pages 845-860 Polarimetric Calibration and Remote Sensing Applications Using an X-C-L-Band SAR....Pages 861-876 Polarization Calibration Considerations for Rough Surface Incoherent Backscattering of Spherical Waves....Pages 877-898 Polarimetric Signal Processing Techniques....Pages 899-907 Polarization Radar Signal Description: Modelling and Processing of Polarimetric Pulse Radar Data....Pages 909-938 The Four-Dimensional Sphere Application to the Representation and Analysis of Partially Polarized Electromagnetic Waves....Pages 939-959 Weibull Distribution in Radar Polarimetry....Pages 961-975 On Adaptive Radar Polarimetry: Concepts of Implementation....Pages 977-988 A Proposed Polarimetric CFAR-Detector and an Analysis of its Operation....Pages 989-998 Polarimetric Radar Stationary Target/Clutter Discrimination Techniques....Pages 999-1010 Target Detection and Classification with Polarimetric High Range Resolution Radar....Pages 1011-1019 Plasma Resonance Effects in Radar Backscattering from Meteor Trails as Studied by the Scattering Matrix Method....Pages 1021-1041 Formulation of Scattering Matrix for Electromagnetic Waves under Non-Linear Transformation: Non-Linear Oxidized Metal Junction Higher Harmonics Reradiation Effects....Pages 1043-1056 ....Pages 1057-1064 Significant Technological Advances During The Last Few Years In The Field Of Electromagnetic Probing In The Meter To Submillimeter Wave, Infrared And Optical Regions, As Well As In Data Processing And The Use Of Mathematical Inverse Methods Have Opened Up New Avenues In The Detection, Identification And Imaging Of Natural And Man-made Objects And Gaseous Agents In Our Environment. Information Previously Considered Irretrievable Can Now Be Recovered From Data Disturbed By Noise And Clutter With The Use Of More Advanced Electromagnetic Imaging Techniques Incorporating Inverse Methods. The Incorporation Of Coherent Polarimetric Phase Information Into Radar Signal And Image Processing Will Lead To A Breakthrough Which Is At Least Comparable To That Wrought By The Advent Of Holography And Computer Assisted Tomography And Its Applications To Synthetic Aperture Radar And Inverse Synthetic Aperture Radar. In Direct And Inverse Methods In Radar Polarimetry A Major Emphasis Is Placed On The Basic Principles Of Electromagnetic Wave Interrogation With Natural And/or Man-made Media And Objects, The Optimal Structuring Of Illumination And Detection, Optimal Recovery Of Useful Target Signal, Mathematical And Data Processing Methods, And Representative Applications. Edited By Wolfgang-m. Boerner, Hans Brand, Leonard A. Cram, William A. Holm, David E. Stein, Werner Wiesbeck, Wolfgang Keydel, Dino Giuli, Dag T. Gjessing, Frédéric A. Molinet.