Articoli correlati a Radar Cross Section Measurements
Sinossi
This guide explains how the radar cross section of objects is typically measured on test ranges, and how testing may be tailored to meet specific requirements. The volume provides basic and advanced information on instrumentation systems, test range design, and measurement technology. Individual chapters describe the design and operation of outdoor test ranges, indoor chambers, dynamic test ranges, and near-field (compact) ranges. In other chapters discussions include target support fixtures, calibration, and scale-model testing. Annotation copyright Book News, Inc. Portland, Or.
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Contenuti
1 Radar Cross Section Fundamentals.- 1.1 The Need for RCS Measurements.- 1.2 Electromagnetic Wave Properties.- 1.3 The Radar Range Equation.- 1.4 Radar Cross Section.- 1.5 Polarization Scattering Matrix.- 1.6 Basic Test Range Requirements.- 1.7 Summary.- 2 Instrumentation Systems.- 2.1 The CW Cancellation Radar.- 2.2 The Noncoherent Pulsed Radar.- 2.3 Coherent Radars.- 2.4 Multiband Scattering Matrix Radars.- 2.5 Digital Functions in Multiband Radars.- 2.6 Summary.- 3 Target Support Structures.- 3.1 Foam Columns.- 3.2 String Supports.- 3.3 The Metal Pylon.- 3.4 Other Structures and Techniques.- 3.5 Summary.- 4 Measurement Errors.- 4.1 Instrumentation and Sensitivity.- 4.2 Target Illumination.- 4.3 Background Contributions.- 4.4 Target—Environment Interactions.- 4.5 Summary.- 5 Calibration.- 5.1 Instrumentation Calibration.- 5.2 Calibration Scatterers with Curved Surfaces.- 5.3 Calibration Scatterers with Flat Surfaces.- 5.4 Calibration by Substitution.- 5.5 Summary.- 6 Outdoor Test Ranges.- 6.1 Ground-Plane Configuration.- 6.2 Two-Path Propagation.- 6.3 Effect of Antenna Pattern.- 6.4 Imperfectly Reflecting Ground Planes.- 6.5 Defeating the Ground Plane.- 6.6 Summary.- 7 Indoor Chambers.- 7.1 Wall Reflections.- 7.2 Chamber Configuration.- 7.3 Chamber Absorbing Materials.- 7.4 Test Chamber Evaluation.- 7.5 Summary.- 8 Compact Ranges.- 8.1 Dielectric Lenses.- 8.2 Large Reflectors.- 8.3 Reflector Edge Configurations.- 8.4 Dual-Reflector Configurations.- 8.5 Chamber Diagnostics.- 8.6 Summary.- 9 Data Processing and Reduction.- 9.1 Statistical Measures.- 9.2 Hard-Target Characteristics.- 9.3 Display Formats.- 9.4 Background Subtraction.- 9.5 Summary.- 10 Radar Imagery.- 10.1 Radar Imaging Principles.- 10.2 The Range Profile.- 10.3 Zero-padding and Windowing.- 10.4 The Cross-Range Profile.- 10.5 Image Formation and Diagnostics.- 10.6 Summary.- 11 Dynamic Test Ranges.- 11.1 The Instrumentation Radar.- 11.2 Dynamic Target Imaging.- 11.3 The Tracking Radar.- 11.4 Metric Data.- 11.5 Some Dynamic RCS Test Ranges.- 11.6 Summary.- 12 Scale-Model Testing.- 12.1 Scaling Laws.- 12.2 Dielectrics and Absorbers.- 12.3 Metallic Coatings and Resistive Sheets.- 12.4 A Specific Full-Scale/Scale-Model Comparison.- 12.5 Summary.- 13 Test Security.- 13.1 General Requirements.- 13.2 Target Shelters.- 13.3 Range Security.- 13.4 The Black Program.- 13.5 Summary.
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