Title :
ISAR minimum-entropy phase adjustment
Author :
Wang, Junfeng ; Kasilingam, Dayalan ; Liu, Xingzhao ; Zhou, Zhixin
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., China
Abstract :
A new technique is developed for phase adjustment in ISAR imaging. The adjustment phase is found by iteratively solving an equation, which is derived by minimizing the entropy of the image. This technique can be used to estimate adjustment phases of any form. Moreover, the optimization method used in this technique is computationally more efficient than trial-and-error methods.
Keywords :
iterative methods; minimum entropy methods; optimisation; phase control; radar imaging; synthetic aperture radar; ISAR imaging; iterative solution; minimum-entropy phase adjustment; optimization; Azimuth; Entropy; Equations; Focusing; Fourier transforms; Optimization methods; Parametric statistics; Phase estimation; Radar scattering; Signal resolution;
Conference_Titel :
Radar Conference, 2004. Proceedings of the IEEE
Print_ISBN :
0-7803-8234-X
DOI :
10.1109/NRC.2004.1316421
