00000nam 2200000zi 4500 9.895054 CaOODSP 20221107173922 m o d f cr bn||||||||| 210106e198401 onca obt f000 0 eng d CaOODSP eng rda CaOODSP Co24-3/7-1368-1984E-PDF Wu, K. H. (Kam Hung) author. Coherent sub-aperture processing techniques for synthetic aperture radar / by K.H. Wu and M.R. Vant. Ottawa : Communications Research Centre, January 1984. 1 online resource (iv, 102 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier CRC report ; no. 1368 "Radar and Communications Technology Branch." "This work was sponsored by the Department of National Defence, Research and Development Branch under Project No. 33C06." Digitized edition from print [produced by Innovation, Science and Economic Development Canada]. Includes bibliographical references (page 95-96). "Coherent sub-aperture techniques for processing synthetic aperture radar (SAR) signals are described. The techniques involve partitioning the full aperture data, in either the time or the frequency domain. Each partition or sub-aperture is then processed independently by the application of a conventional matched filter, or the equivalent. The low resolution images formed by this process are then coherently recombined to form a full resolution image. Such a processing scheme has the advantage of high computational efficiency and provides the capability for the compensation of low frequency spurious motions, even when the SAR is operating in a highly squinted, high resolution imaging situation. A detailed description of two coherent sub-aperture techniques namely, the multi-look matched filtering approach and the step transform, are presented. The techniques are characterized and the normal computational requirements are evaluated. Computer simulations, which were performed to verify the feasibility of the processing schemes, are also described"--Abstract, page 1. Issued also in print format. Synthetic aperture radar. Signal processing Digital techniques. Radar à synthèse d'ouverture. Traitement du signal Techniques numériques. Communications Research Centre (Canada), issuing body. CRC report ; no. 1368. (CaOODSP)9.882492 PDF 2.10 MB https://publications.gc.ca/collections/collection_2021/isde-ised/co24/Co24-3-7-1368-1984-eng.pdf