Journal
SCIENCE CHINA-INFORMATION SCIENCES
Volume 55, Issue 8, Pages 1898-1909Publisher
SCIENCE PRESS
DOI: 10.1007/s11432-012-4606-7
Keywords
sparse aperture; ISAR; all-pole model; coherent processing
Funding
- National Basic Research Program of China [2010CB731903]
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To implement target detection, tracking and imaging in a multifunctional radar system, the wideband measurements for inverse synthetic aperture radar (ISAR) imaging are usually sparsely recorded. Considering the incoherence problem in such sparse-aperture ISAR (SA-ISAR) systems, we concentrate on the study of a coherent processing method in this work. Based on an all-pole model, the incoherence parameters between abutting sub-apertures can be effectively estimated. After coherence compensation, an optimization-based SAISAR imaging approach is provided from the view of statistics. Simulation and real data experiments validate the feasibility and effectiveness of the proposals.
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