Comparison of interpolation methods for ISAR imaging

Ricardo A. Vargas; Benjamin C. Flores

doi:10.1117/12.283954

24 September 1997 Comparison of interpolation methods for ISAR imaging

Ricardo A. Vargas, Benjamin C. Flores

Proceedings Volume 3161, Radar Processing, Technology, and Applications II; (1997) https://doi.org/10.1117/12.283954
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

The purpose of this article is to describe and compare different numerical methods to reconstruct focused ISAR imagery via interpolation in either range-Doppler or frequency domains. Parameters such as amplitude deviation, image entropy, as well as computational efficiency are used to contrast the different approaches presented. It is shown that conventional linear and cubic interpolation techniques are less accurate than other weighted integration techniques, including the unified Fourier reconstruction algorithm which uses an Airy pattern as the interpolating kernel. The appearance of artifacts in linear and cubic interpolation methods is illustrated and discussed. A point target model of a navy drone is used to compare the effectiveness of each method.

Citation Download Citation

Ricardo A. Vargas and Benjamin C. Flores "Comparison of interpolation methods for ISAR imaging", Proc. SPIE 3161, Radar Processing, Technology, and Applications II, (24 September 1997); https://doi.org/10.1117/12.283954

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