Title :
Patch diameter limitation due to high chirp rates in focused SAR images
Author :
Doerry, Armin W.
Author_Institution :
Sandia Nat. Labs., Albuquerque, NM
fDate :
10/1/1994 12:00:00 AM
Abstract :
Polar-format processed synthetic aperture radar (SAR) images have a limited focused patch diameter that results from unmitigated phase errors. Very high chirp rates, encountered with fine-resolution short-pulse radars, exasperate the problem via a residual video phase error term. This letter modifies the traditional maximum patch diameter expression to include effects of very high chirp rates
Keywords :
error analysis; image processing; radar theory; synthetic aperture radar; chirp rates; focused SAR images; maximum patch diameter expression; patch diameter limitation; phase errors; polar-format; residual video phase error; short-pulse radars; synthetic aperture radar; Bandwidth; Chirp; Focusing; Geometry; Image quality; Layout; Radar imaging; Scattering; Synthetic aperture radar; Vehicles;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
