Efficient target motion compensation method for stepped-frequency ISAR signatures

Jae Sok Son; Benjamin C. Flores; Salim Tariq

doi:10.1117/12.283953

24 September 1997 Efficient target motion compensation method for stepped-frequency ISAR signatures

Jae Sok Son, Benjamin C. Flores, Salim Tariq

Proceedings Volume 3161, Radar Processing, Technology, and Applications II; (1997) https://doi.org/10.1117/12.283953
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

We present a new method for estimating the motion parameters of a target from its inverse synthetic aperture radar (ISAR) signature. This method uses the phase of the target's echo transfer function to calculate a focal quality indicator while avoiding two-dimensional Fourier processing. The focal quality indicator reaches the global minimum of a parametric motion surface when the phase is compensated with the target's actual motion parameters. The presence of an absolute minimum without local minima guarantees that the estimated motion parameters are an accurate representation of the target's motion and allows the use of a simple search procedure. Polynomial fitting is incorporated to the new method to improve the robustness by reducing estimation errors due to the finite order of the parametric motion model.

Citation Download Citation

Jae Sok Son, Benjamin C. Flores, and Salim Tariq "Efficient target motion compensation method for stepped-frequency ISAR signatures", Proc. SPIE 3161, Radar Processing, Technology, and Applications II, (24 September 1997); https://doi.org/10.1117/12.283953

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