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Opis

Traditional monostatic Synthetic Aperture Radar (SAR) platforms force the user to choose between two image types: larger, low resolution images or smaller, high resolution images. Switching to a Wide-Angle Multistatic Synthetic Aperture Radar (WAM-SAR) approach allows formation of large high-resolution images. Unfortunately, WAM-SAR suffers from two significant implementation problems. First, wavefront curvature effects, non-linear flight paths, and warped ground planes lead to image defocusing with traditional SAR processing methods. A new 3-D monostatic/bistatic image formation routine solves the defocusing problem, correcting for all relevant wide-angle effects. Inverse SAR (ISAR) imagery from a Radar Cross Section (RCS) chamber validates this approach. The second implementation problem stems from the large Doppler spread in the wide-angle scene, leading to severe aliasing problems. This research effort develops a new anti-aliasing technique using randomized Stepped-Frequency (SF) waveforms to form Doppler filter nulls coinciding with aliasing artifact locations. Both simulation and laboratory results demonstrate effective performance, eliminating more than 99% of the aliased energy.

Szczegóły książki

Kategoria Książki po angielsku Society & social sciences Education

• Pełny tytuł: Wide-Angle Multistatic Synthetic Aperture Radar
• Podtytuł: Focused Image Formation and Aliasing Artifact Mitigation
• Autor: Jonathan E Luminati
• Język: Angielski
• Oprawa: Miękka
• Liczba stron: 374
• EAN: 9781288409839
• ISBN: 9781288409839
• ID: 08250619
• Wydawca: Biblioscholar
• Waga: 667 g
• Wymiary: 246 × 189 × 20 mm
• Data wydania: 06. December 2012

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