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

fYear

2012

fDate

21-23 Sept. 2012

Firstpage

562

Lastpage

566

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICNIDC.2012.6418817

Filename

6418817