Akademik Veri Yönetim Sistemi
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, cilt.56, sa.11, ss.2691-2698, 2014 (SCI-Expanded)
Inverse synthetic aperture radar (ISAR) imaging is an efficient technique to generate two-dimensional spatial distributions of radar cross-section of a target. The received signal of ISAR contains interphase errors resulting in blurring problem in the images due to motion effects of the target. In this study, a simple, stable, and robust method based on artificial bee colony (ABC) algorithm has been proposed for motion compensation (MoComp) to overcome the blurring problem in ISAR images. The minimum entropy was used as objective function in the ABC algorithm for optimally determining the parameters of velocity and acceleration. The proposed method was implemented to four different scenarios based on the two air target models to show performance of the ABC algorithm. The radar signal of the target without MoComp was given as inputs to the ABC algorithm to determine velocity and acceleration values so as to provide the clearest ISAR image. The proposed method was compared with a suggestion reported elsewhere using particle swarm optimization (PSO), PSO with island model, genetic algorithm. It is pointed out that the proposed method is more successful, stable and efficient in terms of the image quality, entropy values, and standard deviation. (C) 2014 Wiley Periodicals, Inc.