A Multilook Processing Approach to 3-D ISAR Imaging Using Phased Arrays

This letter introduces novel processing structures enabling the formation of 3-D inverse synthetic aperture radar (ISAR) images from phased arrays. Unlike previous approaches to 3-D ISAR imaging, this approach uses a spatio-sensor multilook processing procedure that takes better advantage of both 1) the range-Doppler structure of the target and 2) the multiple phase center structure of the processing array. Simulation at both X-band and W-band demonstrates the new 3-D imaging algorithm provides robust interferometric calculations for height estimation under noisy sensing conditions.