Title :
Range Migration Subaperture Algorithm for spotlight SAR in near space
Author :
Ping Zheng ; Xiaojun Jing ; Songlin Sun ; Hai Huang
Author_Institution :
Key Lab. of Trustworthy Distrib. Comput. & Service (BUPT), Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Spotlight Synthetic Aperture Radar (SAR) is an imaging mode with high resolution and widely used in spaceborne and airborne platforms as well as the platform in near space - a new position in space. In this paper, a new algorithm, Range Migration Sub-aperture Algorithm (RMSA), is proposed which is applicable to the spotlight SAR imaging mode in near space. It can reduce the limitation of Pulse Repetition Frequency (PRF) and radar power, and solve the problems of spotlight SAR in near space such as overlong synthetic aperture, motion error, etc. And through the simulation and contrast, the algorithm is verified to be effective.
Keywords :
airborne radar; spaceborne radar; synthetic aperture radar; PRF; RMSA; airborne platforms; imaging mode; motion error; near space; pulse repetition frequency; range migration subaperture algorithm; spaceborne platforms; spotlight SAR; spotlight SAR imaging mode; spotlight synthetic aperture radar; synthetic aperture; Algorithm design and analysis; Apertures; Azimuth; Imaging; Radar imaging; Radar polarimetry; Synthetic aperture radar; Aperture division; Near space; Range migration sub-aperture algorithm; Spotlight SAR;
Conference_Titel :
Network Infrastructure and Digital Content (IC-NIDC), 2012 3rd IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-2201-0
DOI :
10.1109/ICNIDC.2012.6418817
