Title :
One-dimensional spectrum extrapolation for circular SAR imaging
Author :
Ling-juan, Yu ; Yun-hua, Zhang
Author_Institution :
Center for Space Sci. & Appl. Res., Chinese Acad. of Sci., Beijing, China
fDate :
Nov. 29 2010-Dec. 2 2010
Abstract :
Two-dimensional resolution and peak sidelobe ratio (PSLR) of circular SAR (CSAR) change with the variation of relative bandwidth is discussed. Based on this discussion, an algorithm using one-dimensional autoregressive (AR) model to extrapolate spectrum data after matched filtering in range direction is presented. The simulation results of CSAR imaging show that the proposed algorithm can improve resolution and decrease PSLR.
Keywords :
autoregressive processes; extrapolation; matched filters; radar imaging; synthetic aperture radar; circular SAR imaging; matched filtering; one-dimensional autoregressive model; one-dimensional spectrum extrapolation; peak sidelobe ratio; two-dimensional resolution;
Conference_Titel :
Antennas Propagation and EM Theory (ISAPE), 2010 9th International Symposium on
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4244-6906-2
DOI :
10.1109/ISAPE.2010.5696554
