access icon free Geosynchronous SAR raw data simulator in presence of ionospheric scintillation using reverse backprojection

© The Institution of Engineering and Technology
Received 02/01/2020, Published 27/02/2020

The future L-band geosynchronous synthetic aperture radar (GEO SAR) system will be inevitably affected by ionospheric scintillation. Due to the lack of the real system, it is necessary to achieve the scintillation-affected GEO SAR raw data for the research of influential mechanism and correction strategies. A method for the generation of scintillation-affected GEO SAR raw data is proposed that utilises the reverse backprojection (ReBP) to efficiently and accurately modulate the scintillation transfer function on GEO SAR signals. A simulation experiment for a real SAR scene from one of the ALOS-PALSAR observation is operated in case of the current inclined L-band GEO SAR system configuration. The simulation takes less time by using the ReBP, compared with the existent method, and shows the speckle-like phase error similar to the injected scintillation phase error, which validates the nice efficiency and accuracy of the proposed methodology.

Inspec keywords: remote sensing by radar; synthetic aperture radar; geophysical signal processing; ionospheric electromagnetic wave propagation; radar signal processing

Other keywords: injected scintillation phase error; current inclined L-band GEO SAR system configuration; reverse backprojection; SAR scene; GEO SAR signals; geosynchronous SAR raw data; future L-band geosynchronous synthetic aperture radar system; scintillation-affected GEO SAR raw data; scintillation transfer function; ionospheric scintillation

Subjects: Signal processing and detection; Ionospheric electromagnetic wave propagation; Data and information; acquisition, processing, storage and dissemination in geophysics; Radar equipment, systems and applications; Electromagnetic wave propagation; Geophysical techniques and equipment; Instrumentation and techniques for geophysical, hydrospheric and lower atmosphere research

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